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(A): If temperature of an ideal gas is c...

(A): If temperature of an ideal gas is constant. Then change in internal energy is zero.
(R ):For a cyclic path the change in internal is equal to the work done by the gas

A

Both (A) and(R ) are true and (R ) is the correct explanation of (A)

B

Both (A) and (R ) are (R ) true and is not the correct explanation of (A)

C

(A) is true but (R ) is false

D

Both (A) and (R ) are false

Text Solution

Verified by Experts

The correct Answer is:
C
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AAKASH SERIES-THERMODYNAMICS-EXERCISE - 1B
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  5. (A): The entropy of the solids is the highest (R ): Atoms of the soli...

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  6. (A): It is possible to transfer heat energy from body at lower tempera...

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  7. (A): Internal energy of an ideal gas sample is total kinetic energy of...

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  8. (A): The adiabatic exponent [gamma=C(P)/C(V)] of amonoatomic gas (R ...

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  9. (A): If an ideal gas expands in vacuum in an insulated chamber, DeltaQ...

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  10. (A): If temperature of an ideal gas is constant. Then change in intern...

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  11. (A): A refrigerator transfers heat from lower temperature to higher te...

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  15. (A): At room temperature water does not sublimate from ice to steam. ...

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  16. (A): In a pressure cooker the water is brought to boil. The cooker is ...

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  17. (A): The melting point of ice decreases with increase of pressure. (R ...

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  18. (A): In an isolated system the entropy increases. (R ): The process in...

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  19. (A): The carnot cycle is useful in understanding the performance of he...

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  20. (A): When a glass of hot milk is placed in a room and allowed to cool,...

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