Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:

Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:

The P-V diagram for a thermodynamic system is shown in the figure. The work done by the system during the cyclic process ABCA is

1.  Zero

2.  90 J

3.  30 J

4.  60 J

Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:

Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:

Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:

A gas is compressed isothermally to half its initial volume. The same gas is compressed separately through an adiabatic process until its volume is again reduced to half .Then -

(a) compressing the gas through adiabatic process will require more work to be done
(b) compressing the gas isothermally or adiabatically will require the  same amount work
(c) which of the case (whether compression through isothermal or through adiabatic process) requires more work will depend upon the atomicity of the gas
(d) compressing the gas isothermally will require more work to be done

Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:

An ideal gas is compressed to half its initial volume by means of several process. Which of the process results in the maximum work done on the gas?

(b) Isobaric

(c) Isochoric

(d) Isothermal

Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:

A gas is taken through the cycle A→B→C→A, as shown. What is the net work done by the gas?

(a)2000J

(b)1000J

(c)Zero

(d)-2000J

Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:

A cylinder fitted with a piston contains 0.2 moles of air at temperature 27°C. The piston is pushed so slowly that the air within the cylinder remains in thermal equilibrium with the surroundings. Find the approximate work done by the system if the final volume is twice the initial volume

(1) 543 J

(2) 345 J

(3) 453 J

(4) 600 J

Complete Question Bank + Test Series
Complete Question Bank

Difficulty Level:

Two identical samples of a gas are allowed to expand (i) isothermally (ii) adiabatically. Work done is

(1) More in the isothermal process

(2) More in the adiabatic process

(3) Neither of them

(4) Equal in both processes