EASY

JEE Main

IMPORTANT

Earn 100

One mole of a monoatomic gas is carried along process $A B C D E A$ as shown in the diagram. Find the net work done by gas.

50% studentsanswered this correctly

Important Questions on The First Law of Thermodynamics

EASY

JEE Main

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 1>Chapter 15 - The First Law of Thermodynamics>Objective Problems>Q 4

One mole of an ideal gas with heat capacity at constant pressure

C_{p}

undergoes the process

T = T_{0} + α V

where,

T_{0}

and

α

are constants. If its volume increases from

V_{1}

V_{2}

the amount of heat transferred to the gas is

EASY

JEE Main

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 1>Chapter 15 - The First Law of Thermodynamics>Objective Problems>Q 5

Ideal monoatomic gas is taken through a process

d Q = 2 d U .

The molar heat capacity for the process is___ (where,

d Q

is heat supplied and

d U

is change in internal energy)

MEDIUM

JEE Main

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 1>Chapter 15 - The First Law of Thermodynamics>Objective Problems>Q 6

Pressure versus density graph of an ideal gas is shown in figure

Question Image

MEDIUM

JEE Main

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 1>Chapter 15 - The First Law of Thermodynamics>Objective Problems>Q 7

$N$ moles of a monoatomic gas is carried round the reversible rectangular cycle $A B C D A$ as shown in the diagram. The temperature at $A$ is $T_{0}$ . The thermodynamic efficiency of the cycle is approximately

Question Image

EASY

JEE Main

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 1>Chapter 15 - The First Law of Thermodynamics>Objective Problems>Q 8

A closed system undergoes a change of state by process

1 \to 2

for which

Q_{12} = 10 J

and

W_{12} = - 5 J .

The system is now returned to its initial state by a different path

2 \to 1

for which

Q_{21}

- 3 J

. The work done by the gas in the process

2 \to 1

EASY

JEE Main

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 1>Chapter 15 - The First Law of Thermodynamics>Objective Problems>Q 9

An ideal monoatomic gas undergoes the process AB as shown in the figure. If the heat supplied and the work done in the process are $Δ Q$ and $Δ W$ respectively. The ratio $Δ Q : Δ W$ is

Question Image

HARD

JEE Main

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 1>Chapter 15 - The First Law of Thermodynamics>Objective Problems>Q 10

One mole of a gas expands with temperature

T

such that its volume,

V = k T^{2},

where

K

is a constant. If the temperature of the gas changes by

60 ° C,

then the work done by the gas is

HARD

JEE Main

IMPORTANT

Complete Study Pack for Engineering Entrances Objective Physics Vol 1>Chapter 15 - The First Law of Thermodynamics>Objective Problems>Q 13

n

moles of an ideal gas undergo a process in which the temperature changes with volume as

T = k V^{2}

. The work done by the gas as the temperature changes from

T_{0}

4 T_{0}

One mole of a monoatomic gas is carried along process ABCDEA as shown in the diagram. Find the net work done by gas.

Important Questions on The First Law of Thermodynamics

Learn and Prepare for any exam you want !

One mole of a monoatomic gas is carried along process $A B C D E A$ as shown in the diagram. Find the net work done by gas.