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