Mechanical Engineering Exam > Mechanical Engineering Questions > Consider the following statements:A real gas ...
Start Learning for Free
Consider the following statements:
A real gas obeys perfect gas law at a very
1. High temperature
2. High-pressure
3. Low pressure
Which of the following statements is/are correct?
- a)1 alone
- b)1 and 3
- c)2 alone
- d)3 alone
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Consider the following statements:A real gas obeys perfect gas law at ...
In Perfect gas intermolecular attraction is zero. It will be only possible when intermolecular distance will be too high. High temperature or low pressure or both cause high intermolecular distance so choice 1 and 3.
Most Upvoted Answer
Consider the following statements:A real gas obeys perfect gas law at ...
Explanation:
Perfect gas law is given by PV = nRT, where P is pressure, V is volume, n is the number of moles of the gas, R is the universal gas constant and T is the temperature.
Real gases, unlike ideal gases, do not obey perfect gas law exactly. They have intermolecular forces between the gas molecules which affect their behavior. However, at certain conditions, they behave like ideal gases and obey perfect gas law.
1. High temperature:
At high temperature, the kinetic energy of the gas molecules increases, which makes them move faster and collide more frequently. This reduces the effect of intermolecular forces and makes the gas behave like an ideal gas. Therefore, a real gas obeys perfect gas law at high temperature.
2. High-pressure:
At high pressure, the volume occupied by the gas molecules becomes significant compared to the total volume of the gas. This results in a decrease in the average distance between the gas molecules, which increases the effect of intermolecular forces. Therefore, real gases do not obey perfect gas law at high pressure.
3. Low pressure:
At low pressure, the distance between the gas molecules becomes significant compared to their size. This reduces the effect of intermolecular forces and makes the gas behave like an ideal gas. Therefore, a real gas obeys perfect gas law at low pressure.
Conclusion:
From the above discussion, it is clear that a real gas obeys perfect gas law at high temperature and low pressure. Therefore, option B (1 and 3) is the correct answer.
Perfect gas law is given by PV = nRT, where P is pressure, V is volume, n is the number of moles of the gas, R is the universal gas constant and T is the temperature.
Real gases, unlike ideal gases, do not obey perfect gas law exactly. They have intermolecular forces between the gas molecules which affect their behavior. However, at certain conditions, they behave like ideal gases and obey perfect gas law.
1. High temperature:
At high temperature, the kinetic energy of the gas molecules increases, which makes them move faster and collide more frequently. This reduces the effect of intermolecular forces and makes the gas behave like an ideal gas. Therefore, a real gas obeys perfect gas law at high temperature.
2. High-pressure:
At high pressure, the volume occupied by the gas molecules becomes significant compared to the total volume of the gas. This results in a decrease in the average distance between the gas molecules, which increases the effect of intermolecular forces. Therefore, real gases do not obey perfect gas law at high pressure.
3. Low pressure:
At low pressure, the distance between the gas molecules becomes significant compared to their size. This reduces the effect of intermolecular forces and makes the gas behave like an ideal gas. Therefore, a real gas obeys perfect gas law at low pressure.
Conclusion:
From the above discussion, it is clear that a real gas obeys perfect gas law at high temperature and low pressure. Therefore, option B (1 and 3) is the correct answer.
Attention Mechanical Engineering Students!
To make sure you are not studying endlessly, EduRev has designed Mechanical Engineering study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Mechanical Engineering.
|
Explore Courses for Mechanical Engineering exam
|
|
Similar Mechanical Engineering Doubts
Top Courses for Mechanical EngineeringView all
Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer?
Question Description
Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer?.
Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer? for Mechanical Engineering 2024 is part of Mechanical Engineering preparation. The Question and answers have been prepared according to the Mechanical Engineering exam syllabus. Information about Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Mechanical Engineering 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer?.
Solutions for Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for Mechanical Engineering.
Download more important topics, notes, lectures and mock test series for Mechanical Engineering Exam by signing up for free.
Here you can find the meaning of Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer?, a detailed solution for Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer? has been provided alongside types of Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider the following statements:A real gas obeys perfect gas law at a very1. High temperature2. High-pressure3. Low pressureWhich of the following statements is/are correct?a)1 aloneb)1 and 3c)2 aloned)3 aloneCorrect answer is option 'B'. Can you explain this answer? tests, examples and also practice Mechanical Engineering tests.
|
|
Explore Courses for Mechanical Engineering 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