Class 9 Exam > Class 9 Questions > Which of the following statements is correct?...
Start Learning for Free
Which of the following statements is correct?
- a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.
- b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.
- c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.
- d)The presence of reacting species in a covered beaker is an example of open system
Correct answer is option 'A'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Which of the following statements is correct?a)The presence of reactan...
If a closed reaction vessel is made of copper, it will work as closed system because in such system heat will be exchanged with the surroundings but no matter will exchange.
View all questions of this test
Most Upvoted Answer
Which of the following statements is correct?a)The presence of reactan...
Statement: The presence of reactants in a closed vessel made up of copper is an example of a closed system.
Explanation:
To understand why option A is correct, let's first define what a closed system is.
A closed system is a type of thermodynamic system where there is no exchange of matter with the surroundings, but energy can be exchanged. In other words, no substances can enter or leave the system, but energy can flow in or out.
Now, let's analyze the given options to determine which one correctly describes a closed system.
Option A: The presence of reactants in a closed vessel made up of copper is an example of a closed system.
This option states that a closed vessel made up of copper contains reactants, indicating a chemical reaction is taking place. Since the vessel is closed, no reactants or products can escape or enter the system. However, energy can still be exchanged with the surroundings. This aligns with the definition of a closed system, making option A correct.
Option B: There is an exchange of energy as well as matter between the system and the surroundings in a closed system.
This option incorrectly suggests that matter can be exchanged between a closed system and its surroundings. As mentioned earlier, a closed system does not allow matter exchange. Therefore, option B is incorrect.
Option C: The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.
This option is similar to option A. It states that a closed insulated vessel contains reactants, implying a chemical reaction is occurring. As long as the vessel is truly closed (i.e., no matter exchange), this can be considered a closed system. Therefore, option C is also correct.
Option D: The presence of reacting species in a covered beaker is an example of an open system.
This option describes a covered beaker containing reacting species. However, a covered beaker is not a closed system because it does not prevent matter exchange. The cover can be removed, allowing matter to be added or removed from the system. Therefore, option D is incorrect.
In conclusion, both options A and C correctly describe a closed system, as they state that reactants are present in a closed vessel, preventing matter exchange with the surroundings while allowing energy exchange.
Explanation:
To understand why option A is correct, let's first define what a closed system is.
A closed system is a type of thermodynamic system where there is no exchange of matter with the surroundings, but energy can be exchanged. In other words, no substances can enter or leave the system, but energy can flow in or out.
Now, let's analyze the given options to determine which one correctly describes a closed system.
Option A: The presence of reactants in a closed vessel made up of copper is an example of a closed system.
This option states that a closed vessel made up of copper contains reactants, indicating a chemical reaction is taking place. Since the vessel is closed, no reactants or products can escape or enter the system. However, energy can still be exchanged with the surroundings. This aligns with the definition of a closed system, making option A correct.
Option B: There is an exchange of energy as well as matter between the system and the surroundings in a closed system.
This option incorrectly suggests that matter can be exchanged between a closed system and its surroundings. As mentioned earlier, a closed system does not allow matter exchange. Therefore, option B is incorrect.
Option C: The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.
This option is similar to option A. It states that a closed insulated vessel contains reactants, implying a chemical reaction is occurring. As long as the vessel is truly closed (i.e., no matter exchange), this can be considered a closed system. Therefore, option C is also correct.
Option D: The presence of reacting species in a covered beaker is an example of an open system.
This option describes a covered beaker containing reacting species. However, a covered beaker is not a closed system because it does not prevent matter exchange. The cover can be removed, allowing matter to be added or removed from the system. Therefore, option D is incorrect.
In conclusion, both options A and C correctly describe a closed system, as they state that reactants are present in a closed vessel, preventing matter exchange with the surroundings while allowing energy exchange.
Free Test
FREE
| Start Free Test |
Community Answer
Which of the following statements is correct?a)The presence of reactan...
It will be a closed system.
Attention Class 9 Students!
To make sure you are not studying endlessly, EduRev has designed Class 9 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 9.
|
Explore Courses for Class 9 exam
|
|
Similar Class 9 Doubts
Top Courses for Class 9View all
Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer?
Question Description
Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer?.
Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer? for Class 9 2024 is part of Class 9 preparation. The Question and answers have been prepared according to the Class 9 exam syllabus. Information about Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 9 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 9.
Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free.
Here you can find the meaning of Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Which of the following statements is correct?a)The presence of reactants in a closed vessel made up of copper is an example of a closed system.b)There is an exchange of energy as well as matter between the system and the surroundings in a closed system.c)The presence of reactants in a thermos flask or any other closed insulated vessel is an example of a closed system.d)The presence of reacting species in a covered beaker is an example of open systemCorrect answer is option 'A'. Can you explain this answer? tests, examples and also practice Class 9 tests.
|
|
Explore Courses for Class 9 exam
|
|
Suggested Free Tests
Test: The Fundamental Unit of Life- Case Based Type Questions- 1
Test | 10 questions
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup