Physics-
General
Easy
Question
The graph below shows V-P curve for three processes. Choose the correct statement(s)
- Work done is maximum in process 1
- Temperature must increase in process 2 & 3
- Heat must be supplied in process 1
- If final volume of gas in process 1, 2 and 3 are same then temperature must be same
The correct answer is: Work done is maximum in process 1
Area under P-V curve and volume axis represent work. Internal energy in 1 increases (expansion at constant pressure) In process 2 and 3 internal energy may decrease depending on the process.
Since final pressure of 1, 2 & 3 are different, final temperature must also be different.
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