Physics NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 13 PCB MCQ (Single Correct)

Two moles of an ideal monatomic gas occupies a volume at . The gas expands adiabatically to a volume 2 V. Calculate (I) the final temperature of the gas and (II) change in its internal energy.

A
(I) 198 K, (II) 2.7 kJ
B
(I) 195 K, (II) -2.7 kJ
C
(I) 189 K, (II) -2.7 kJ
D
(I) 195 K, (II) 2.7 kJ

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Text Solution

Verified by Experts
The correct answer is:
C

For an adiabatic process, constant
constant or constant

Here,

Change in internal energy,

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