MCQ
When heat in given to a gas in an isobaric process, then
  • A
    The work is done by the gas
  • B
    Internal energy of the gas increases
  • Both $ (a)$ and $(b)$
  • D
    None from $(a)$ and $(b)$

Answer

Correct option: C.
Both $ (a)$ and $(b)$
c
(c)When heat is supplied at constant pressure, a part of it goes in the expansion of gas and remaining part is used to increase the temperature of the gas which in turn increases the internal energy.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Similar questions

A ball is dropped from the top of a building $100\,m$ high. At the same instant another ball is thrown upwards with a velocity of $40\,m / s$ from the bottom of the building. The two balls will meet after $..........\,s$
An angular impulse of $20 \,Nms$ is applied to a hollow cylinder of mass $2 \,kg$ and radius $20 \,cm$. The change in its angular speed is ............. $rad / s$
A motorcycle is going on an overbridge of radius $R$. The driver maintains a constant speed. As the motorcycle is ascending on the overbridge, the normal force on it
A ball is rolling without slipping in a spherical shallow bowl (radius $R$ ) as shown in the figure and is executing simple harmonic motion. If the radius of the ball is doubled, then the time period of oscillation
The distance between two particles is decreasing at the rate of $6 \,m/sec$. If these particles travel with same speeds and in the same direction, then the separation increase at the rate of $4 \,m/sec$. The particles have speeds as
Planetary system in the solar system describes
A system can be taken from the initial state p1, V1 to the final state p2, V2 by two different methods. Let $\Delta\text{Q}$ and $\Delta\text{W}$ represent the heat given to the system and the work done by the system. Which of the following must be the same in both the methods?

  1. $\Delta\text{Q}$

  2. $\Delta\text{W}$

  3. $\Delta\text{Q}+\Delta\text{W}$

  4. $\Delta\text{Q}-\Delta\text{W}$

Two vectors of magnitude $3$ & $4$ have resultant which make angle $\alpha$ & $\beta$ respectively with them $\{given\, \alpha + \beta \neq 90^o\}$
Two projectiles are thrown simultaneously in the same plane from the same point. If their velocities are $v_1$ and $v_2$ at angles $\theta _1$ and $\theta_2$ respectively from the horizontal, then answer the following question

The trajectory of particle $1$ with respect to particle $2$ will be

A scalar quantity is one that