I, II, III are three isotherms respectively at T1,T2 and T3. Temperature will be in the order:
A
T1=T2=T3
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B
T1<T2<T3
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C
T1>T2>T3
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D
T1>T2=T3
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Solution
The correct option is CT1>T2>T3 We know, if a horizontal line is drawn parallel to the volume axis, than at a constant pressure for every volume we get a corresponding temperature.
At constant pressure for a fixed amount of gas, volume is directly proportional to the temperature.
From graph , we know V1>V2>V3 ∴T1>T2>T3