Q36 / 268 · NTA Abhyas (NEET) 2020 · Physics · Thermodynamics

Shown in the figure are three $P - V$ diagrams.The case in which the work done is minimum

A
I
B
II
Correct answer
C
III
D
Work done is same in all the cases

Solution

Area under curve III is minimum. Therefore, work done is minimum

Hence, the correct answer is option: 'C'.

More Thermodynamics Questions

A Carnot engine takes 300 calories of heat from a source at 500 K and rejects 150 calories of heat to the sink. The temperature of the sink
A cyclic process A B C A is shown in the V - T diagram. Process on the P - V diagram is
Work done (in kJ ) by the gas in the following cyclic process is
The coefficient of performance of a refrigerator is 5 . If the temperature inside freezer is - 20 o C , the temperature of the surrounding t
Calculate the heat absorbed by a system in going through the cyclic process shown in diagram.
A refrigerator absorbs 2000 c a l of heat from ice trays. If the coefficient of performance is 4 , then work done by the motor is