Class 7 Exam > Class 7 Questions > Chemical change that is accompanied by evolut...
Start Learning for Free
Chemical change that is accompanied by evolution of heat energy is:
- a)physical chemical change
- b)exothermic chemical change
- c)endothermic chemical change
- d)None of these
Correct answer is option 'B'. Can you explain this answer?
Verified Answer
Chemical change that is accompanied by evolution of heat energy is:a)p...
exothermic chemical change
This question is part of UPSC exam. View all Class 7 courses
Most Upvoted Answer
Chemical change that is accompanied by evolution of heat energy is:a)p...
Exothermic Chemical Change.
Explanation:
Exothermic Chemical Change is a type of chemical change which is accompanied by evolution of
heat.
While the others are not.
That's why it is the correct answer.
Explanation:
Exothermic Chemical Change is a type of chemical change which is accompanied by evolution of
heat.
While the others are not.
That's why it is the correct answer.
Community Answer
Chemical change that is accompanied by evolution of heat energy is:a)p...
Exothermic Chemical Change
Exothermic chemical change is a type of chemical reaction that releases heat energy. Let's break down this concept further:
Definition
An exothermic chemical change is a reaction where the energy of the products is lower than the energy of the reactants, resulting in the release of heat energy to the surroundings.
Characteristics
- Heat energy is given off during the reaction
- The surroundings feel warm
- The temperature of the surroundings increases
- Examples include combustion reactions like burning wood or gas
Energy Change
In an exothermic reaction, the energy released comes from the chemical bonds that are broken in the reactants and formed in the products. This energy is released in the form of heat.
Signs of Exothermic Reactions
- Temperature increase
- Evolution of heat
- Production of light
- Production of sound
Applications
Exothermic reactions are crucial in various everyday processes such as combustion engines, hand warmers, and fireworks. They are also used in industries for the production of energy and chemicals.
In conclusion, an exothermic chemical change is characterized by the release of heat energy during a reaction. This type of reaction plays a significant role in various natural and industrial processes.
Exothermic chemical change is a type of chemical reaction that releases heat energy. Let's break down this concept further:
Definition
An exothermic chemical change is a reaction where the energy of the products is lower than the energy of the reactants, resulting in the release of heat energy to the surroundings.
Characteristics
- Heat energy is given off during the reaction
- The surroundings feel warm
- The temperature of the surroundings increases
- Examples include combustion reactions like burning wood or gas
Energy Change
In an exothermic reaction, the energy released comes from the chemical bonds that are broken in the reactants and formed in the products. This energy is released in the form of heat.
Signs of Exothermic Reactions
- Temperature increase
- Evolution of heat
- Production of light
- Production of sound
Applications
Exothermic reactions are crucial in various everyday processes such as combustion engines, hand warmers, and fireworks. They are also used in industries for the production of energy and chemicals.
In conclusion, an exothermic chemical change is characterized by the release of heat energy during a reaction. This type of reaction plays a significant role in various natural and industrial processes.
Attention Class 7 Students!
To make sure you are not studying endlessly, EduRev has designed Class 7 study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Class 7.
|
|
Explore Courses for Class 7 exam
|
|
Top Courses for Class 7View all
Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer?
Question Description
Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer?.
Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 7.
Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Here you can find the meaning of Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Chemical change that is accompanied by evolution of heat energy is:a)physical chemical changeb)exothermic chemical changec)endothermic chemical changed)None of theseCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Class 7 tests.
|
|
Explore Courses for Class 7 exam
|
|
Suggested Free Tests
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup