Related Practice Questions :

A thermodynamic system is taken through the cycle ABCD as shown in figure. Heat rejected by the gas during the cycle is 

(a)2 pV                                     (b)4 pV

(c)12pV                                    (d)pV

To view Explanation, Please buy any of the course from below.
Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:


An ideal gas goes from state A to state B

via three different processes as indicated 

in the p-V diagram

If Q1, Q2, Q3 indicates the heat absorbed

by the gas along the three processes and 

U1, U2, U3 indicates the change in 

internal energy along the three processes

respectively, then

(a) Q1>Q2>Q3 and U1= U2= U3

(b) Q3>Q2>Q1 and U1= U2= U3

(c) Q1=Q2=Q3 and U1>U2>U3

(d) Q3>Q2>Q1 and U1>U2>U3

To view Explanation, Please buy any of the course from below.
Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:


The internal energy change in a system that has absorbed 2 kcal of heat and done 500 J of work is 

(a) 8900 J                                      (b) 6400 J

(c) 5400 J                                      (d) 7900 J

To view Explanation, Please buy any of the course from below.
Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:


A system performs work ΔW when an amount of heat is ΔQ added to the system, the corresponding change in the internal energy is ΔU. A unique function of the initial and final states (irrespective of the mode of change) is -

(1) ΔQ

(2) ΔW

(3) ΔU and ΔQ

(4) ΔU

To view Explanation, Please buy any of the course from below.
Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:


A container of volume 1m3 is divided into two equal compartments by a partition. One of these compartments contains an ideal gas at 300 K. The other compartment is vaccum. The whole system is thermally isolated from its surroundings. The partition is removed and the gas expands to occupy the whole volume of the container. Its temperature now would be -

(1) 300 K

(2) 239 K

(3) 200 K

(4) 100 K

To view Explanation, Please buy any of the course from below.
Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level: