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The specific heats at constant pressure is greater than that of the same gas at constant volume because
  • a)
    At constant pressure work is done in expanding the gas
  • b)
    At constant volume work is done in expanding the gas
  • c)
    The molecular attraction increases more at constant pressure
  • d)
    The molecular vibration increases more at constant pressure
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The specific heats at constant pressure is greater than that of the sa...
When a gas is heated at const vol., no external work is done and so the heat supplied is consumed only in increasing the internal energy of gas. But if the gas is heated at constant pressure, the gas expands against pressure so does some external work. In this case the heat supplied is used up in increasing the internal energy of gas and in doing some external work.

since the internal energy depends only on the temp., so for the same value of temp the internal energy of gas will increase by same amount whether the pressure and vol remains constant. But since ext. work is additionally done for cont. pressure process. So for same rise of temp. more amount of heat is supplied at const. pressure thats why specific heat at const. pressure is greater than specific heat at const. vol..
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The specific heats at constant pressure is greater than that of the same gas at constant volume becausea)At constant pressure work is done in expanding the gasb)At constant volume work is done in expanding the gasc)The molecular attraction increases more at constant pressured)The molecular vibration increases more at constant pressureCorrect answer is option 'A'. Can you explain this answer?
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The specific heats at constant pressure is greater than that of the same gas at constant volume becausea)At constant pressure work is done in expanding the gasb)At constant volume work is done in expanding the gasc)The molecular attraction increases more at constant pressured)The molecular vibration increases more at constant pressureCorrect answer is option 'A'. Can you explain this answer? for NEET 2024 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about The specific heats at constant pressure is greater than that of the same gas at constant volume becausea)At constant pressure work is done in expanding the gasb)At constant volume work is done in expanding the gasc)The molecular attraction increases more at constant pressured)The molecular vibration increases more at constant pressureCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for NEET 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The specific heats at constant pressure is greater than that of the same gas at constant volume becausea)At constant pressure work is done in expanding the gasb)At constant volume work is done in expanding the gasc)The molecular attraction increases more at constant pressured)The molecular vibration increases more at constant pressureCorrect answer is option 'A'. Can you explain this answer?.
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