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Questions  

One mole of a monatomic ideal gas undergoes a cyclic process as shown in the figure (where V is the volume and T is the temperature). Which of the statements below is (are) true?

a
Process I is an isochoric process
b
In process II, gas absorbs heat
c
In process IV, gas releases heat
d
Processes I and III are not isobaric

detailed solution

Correct option is B

A)Process-I is not isochoric,V is decreasing .B)Process-II is isothermal expansion     ΔU=0,  W>0   ΔQ>0    C)Process-IV is isothermal compression ,ΔU=0,W<0  ΔQ<0D)Process-I and III are NOT isobaric because in isobaric process T∝V hence isobaric T-V graph will be linear.

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