Q.

When 1 mole of CO2, ( g) occupying volume 10 L at 27°c is expanded under adiabatic condition, temperature falls to 150 K. Hence, final volume is

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a

5 L

b

80 L

c

20 L

d

40 L

answer is C.

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Detailed Solution

For adiabatic expansion
T2T1=V1V2γ1
γ=1.33 for CO2 (triatomic gas)
150300=10V20.3312=10V21/310V2=18V2=80L

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