## Isothermal Process - MCQ - Basic Level

Physics is an important subject in preparation for various Competitive exams. To keep a track of your preparation we have designed a small quiz of Basic Level Questions on Isothermal Process. You have 10 minutes to solve the quiz, click the start timer button in order to start the timer and then click on submit button at the end to submit the quiz and view your scores and correct answers.

Q1. Which is incorrect

•  Are the same for both
•  Is greater for the ball
•  Is greater for the spring
•  For the two may or may not be the same depending upon the metal

Q2. Consider the following statements
Assertion (A): The isothermal curves intersect each other at a certain point
Reason (R) : The isothermal changes take place slowly, so the isothermal curves have very little slope
Of these statements

•  Both A and R are true and R is a correct explanation of A
•  Both A and R are true but R is not a correct explanation of A
•  A is true but R is false
•  A is false but R is true

Q3. The isothermal bulk modulus of a perfect gas at normal pressure is

•  1.013 x 105 N/m2
•  1.013 x 106 N/m2
•  1.013 x 10-11 N/m2
•  1.013 x 1011 N/m2

Q4. When an ideal gas in a cylinder was compressed isothermally by a piston, the work done on the gas was found to be 1.5 x 104 J During this process about

•  3.6 x 103 J calorie of heat flowed out from the gas
•  3.6 x 103 J calorie of heat flowed into the gas
•  1.5 x 104 J calorie of heat flowed into the gas
•  1.5 x 104 J calorie of heat flowed out from the gas

Q5. If a gas is heated at constant pressure, its isothermal compressibility

•  Remains constant
•  Increases linearly with temperature
•  Decreases linearly with temperature
•  Decreases inversely with temperature

Q6. N moles of an ideal diatomic gas are in a cylinder at temperature T. Suppose on supplying heat to the gas, its temperature remain constant but n moles get dissociated into atoms. Heat supplied to the gas is

•  Zero
•  1/2 nRT
•  3/2 nRT
•  3/2 (N-n)RT

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Isothermal Process - MCQ - Basic