Work, Power and EnergyHard
Question
The graph below shows V-P curve for three processes. Choose the correct statement(s)
Options
A.Work done is maximum in process 1.
B.Temperature must increase in process 2 & 3.
C.Heat must be supplied in process 1.
D.If final volume of gas in process 1, 2 and 3 are same then temperature must be same.
Solution
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.
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.
Create a free account to view solution
View Solution FreeMore Work, Power and Energy Questions
A body is moved along a straight line by a machine delivering constant power. The distance moved by the body in time t i...Force F on a particle moving in a straight line varies with distance d as shown in figure.The work done on the particle ...A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle,...A refrigerator works between 4oC and 30oC. It is required to remove 600 calories of heat every second inorder to keep th...The graph between and is (EK = kinetic energy and p = momentum) −...