(A) According to the first law of thermodynamics,the change in internal energy $\Delta U$ is given by $\Delta Q = \Delta U + W$,where $\Delta Q$ is th

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

In an adiabatic process,$\Delta U = -W$

(A) According to the first law of thermodynamics,the change in internal energy $\Delta U$ is given by $\Delta Q = \Delta U + W$,where $\Delta Q$ is the heat supplied to the system and $W$ is the work done by the system.In an adiabatic process,there is no exchange of heat between the system and the surroundings,so $\Delta Q = 0$.Substituting this into the first law equation: $0 = \Delta U + W$.Therefore,$\Delta U = -W$.

Class 11 Physics Thermodynamics Adiabatic Process

Easy

In a thermodynamic system,$W$ represents the work done by the system and $\Delta U$ is the increase in internal energy. Which of the following statements is $TRUE$?

MHT CET 2022 All MHT CET

A
In an adiabatic process,$\Delta U = -W$
B
In an isothermal process,$\Delta U = W$
C
In an adiabatic process,$\Delta U = W$
D
In an isothermal process,$\Delta U = -nW$

Explore More

Browse All

Question Bank

All Subjects

Class 11 Questions

Class 11

Physics Questions

Chapter

Thermodynamics

Subtopic

Adiabatic Process

Previous Year

MHT CET 2022 Paper All MHT CET years →

In an adiabatic expansion,the product of pressure and volume:

Medium

View Solution

The volume of air increases by $5\%$ in its adiabatic expansion. The percentage decrease in its pressure will be ...... $\%$

Medium

View Solution

For $1 \text{ mole}$ of an ideal gas,during an adiabatic process,the square of the pressure of a gas is found to be proportional to the cube of its absolute temperature. The specific heat of the gas at constant volume is ($R$ is universal gas constant)

EasyAP EAMCET 2017

View Solution

In an adiabatic change,the pressure $P$ and temperature $T$ of a diatomic gas are related by the relation $P \propto T^C$,where $C$ is equal to:

Difficult

View Solution

$A$ polyatomic gas is compressed to $\left(\frac{1}{8}\right)^{\text{th}}$ of its original volume adiabatically. If its initial pressure is $P_0$,what will be its new pressure (in $P_0$)? (Given: $\gamma = \frac{C_p}{C_v} = \frac{4}{3}$)

MediumMHT CET 2025

View Solution

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial

For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free

For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo

In a thermodynamic system,$W$ represents the work done by the system and $\Delta U$ is the increase in internal energy. Which of the following statements is $TRUE$?

Similar Questions

In an adiabatic expansion,the product of pressure and volume:

The volume of air increases by $5\%$ in its adiabatic expansion. The percentage decrease in its pressure will be ...... $\%$

For $1 \text{ mole}$ of an ideal gas,during an adiabatic process,the square of the pressure of a gas is found to be proportional to the cube of its absolute temperature. The specific heat of the gas at constant volume is ($R$ is universal gas constant)

In an adiabatic change,the pressure $P$ and temperature $T$ of a diatomic gas are related by the relation $P \propto T^C$,where $C$ is equal to:

$A$ polyatomic gas is compressed to $\left(\frac{1}{8}\right)^{\text{th}}$ of its original volume adiabatically. If its initial pressure is $P_0$,what will be its new pressure (in $P_0$)? (Given: $\gamma = \frac{C_p}{C_v} = \frac{4}{3}$)

Vedclass Test Series

Exam Paper Generator

Online Exam Module