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Q.

Which of the following is the correct option for free expansion of an ideal gas under adiabatic condition

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a

q=0,ΔT≠0.W=0

b

q=0,ΔT≠0,W≠0

c

q=0,ΔT=0,W=0

d

q=0,ΔT=0,W≠0

answer is C.

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Detailed Solution

For the free expansion of an ideal gas, the opposing force is zero, hence work done = 0. ΔU=q+w,w=0 and ΔU=qBut the process is adiabatic, hence q = 0 ∴q=0,ΔT=0, w=0
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