NEET | 2018Atomic StructureHard

Question

The volume (V) of a monatomic gas varies with its temperature (T), as shown in the graph. The ratio of work done by the gas, to the heat absorbed by it, when it undergoes a change from state A to state B, is :-

Options

A.

25

B.

23

C.

13

D.

27

Solution

V ∝ T
isobaric process
W = P∆V = μR∆T
∆Q = μCP∆T
for mono atomic gas f = 3
Cp=f2R+R=52Rso w∆Q=μR∆TμCp∆T=25

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