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Question

1 litre of an ideal gas (γ=1.5) at 300 K is suddenly compressed to half its original volume.
What is the final temperature?

A
44 K.
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B
24 K.
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C
524 K.
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D
424 K.
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Solution

The correct option is D 424 K.
Given : 1 litre1 litre of an ideal gas (γ=1.5)(γ=1.5) at 300 K300 K is suddenly compressed to half its original volume.
What is the final temperature?

Solution :
γ=1.5 , T=300K , V=1L , V=1/2 L
The process is adiabatic as it is sudden
T1Vγ11=T2Vγ12
300K(1)1.51=T2(12)1.51
On solving we get T2=3002 = 424.2 424

The Correct Opt =D


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