Heat and Thermodynamics PYQs - Last 10 Years

TS EAMCET / Physics / Mechanics / 125 recent questions

PhysicsMechanics2016-2025

All Heat and Thermodynamics PYQs Last 5 Years Create chapter test

Practice 125 TS EAMCET Physics questions from Heat and Thermodynamics. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

125

PYQs on Page

Physics / Mechanics

2020-2025

Year Range

Based on indexed question metadata

101

Last 5 Years

2021-2025

125

Last 10 Years

2016-2025

Recent Year Trend

2020

2022

2023

2024

2025

202030 max PYQs/year2025

Question Types

125PYQs

MCQ100%

Difficulty Mix

#1 Unknown104

#2 Medium11

#3 Easy8

#4 Hard2

101 in last 5 years125 in last 10 years

Last 10 Years Heat and Thermodynamics Questions

Showing 25 of 125 filtered questions.

1Heat And Thermodynamics

A metal cube absorbs 2100.0 J of heat when its temperature is raised by $2^{\circ} \mathrm{C}$. If the specific heat of the metal is $900 \mathrm{~J} \mathrm{~kg}^{-1} \mathrm{~K}^{-1}$, then the mass of the cube is

2Heat And Thermodynamics

Mean free path of molecules in a polyatomic gas is independent of

3Heat And Thermodynamics

What is the name of ideal-gas process in which no heat is transferred?

4Heat And Thermodynamics

How much heat energy is supplied when 5 kg of water at $20^{\circ} \mathrm{C}$ is brought to its boiling point? (Assume, specific heat of water $=4.2 \mathrm{~J} / \mathrm{g}^{\circ} \mathrm{C}$ )

5Heat And Thermodynamics

Assertion A thermos bottle consists of a double walled glass vessel with the space between the two walls evacuated, so that the heat transfer between the contents of the bottle and outside is minimised.
Reason The vacuum between the two wal...

6Heat And Thermodynamics

All gases deviate from gas laws at

7Heat And Thermodynamics

A Carnot engine $C_1$ operates between temperature $T_1$ and $T_2\left(T_1>T_2\right)$. A second Carnot engine $C_2$ uses all the heat rejected by the engine $C_1$ and operates between temperature $T_2$ and $T_3$ (where $T_2>T_3$ ). The eff...

8Heat And Thermodynamics

If $\lambda$ denotes the wavelength at which the radiative emission from a black body at a temperature $T$ is maximum, then

9Heat And Thermodynamics

If $\alpha_V$ and $T$ are the coefficient of volume expansion and temperature for an ideal gas respectively, then

10Heat And Thermodynamics

A system goes from $A$ and $B$ via two processes I and II as shown in figure. If $\Delta U_1$ and $\Delta U_2$ are the changes in internal energies in the processes I and II respectively, then the relation between $\Delta U_1$ and $\Delta U...

11Heat And Thermodynamics

A Carnot engine whose efficiency is $40 \%$, receives heat at 500 K . If the efficiency is to be $50 \%$, the source temperature for the same exhaust temperature is

12Heat And Thermodynamics

An ideal gas at temperature $T$, pressure $p$ occupies a volume $V$. If its temperature is halved and pressure doubled, what is its new volume?

13Heat And Thermodynamics

A heating element of mass 100 g and having specific heat of $1 \mathrm{~J} /\left(\mathrm{g}^{\circ} \mathrm{C}\right)$ is exposed to surrounding air at $27^{\circ} \mathrm{C}$. The element attains a steady state temperature of $127^{\circ}...

14Heat And Thermodynamics

A sheet of steel at $20^{\circ} \mathrm{C}$ has size as shown in figure below. If the co-efficient of linear expansion for steel is $10^{-5}{ }^{\circ} \mathrm{C}^{-1}$, then what is the change in the area at $60^{\circ} \mathrm{C}$ ?

15Heat And Thermodynamics

Certain amount of heat supplied to an ideal gas under isothermal condition will result in

16Heat And Thermodynamics

A gas is at constant pressure $4 \times 10^5 \mathrm{~N} / \mathrm{m}^2$. When a heat energy of 2000 J is supplied to the gas, its volume changes by $3 \times 10^{-3} \mathrm{~m}^3$. What is the increase in its internal energy?

17Heat And Thermodynamics

Different material of two identical long bars $A$ and $B$ are coated with wax and have their one end immersed in a hot oil bath. When the steady state is reached, the lengths for which wax melt are $l_A$ and $l_B$. If $k_A$ and $k_B$ are th...

18Heat And Thermodynamics

A composite slab is prepared with two different materials $A$ and $B$. The relation between their coefficient of thermal conductivity and thickness is given as $K_A=\frac{K_B}{2}$ and $X_A=2 X_B$, respectively. If the temperature of faces o...

19Heat And Thermodynamics

If a gas has $n$ degrees of freedom, then the ratio of $\frac{C_p}{C_V}$ is

20Heat And Thermodynamics

Work done on heating one mole of monoatomic gas adiabatically through $20^{\circ} \mathrm{C}$ is $W$. Then, the work done on heating 6 moles of rigid diatomic gas through the same change in temperature

21Heat And Thermodynamics

The specific heat of helium at constant volume is 12.6 J $\mathrm{mol}^{-1} \mathrm{~K}^{-1}$. The specific heat of helium at constant pressure in $\mathrm{J} \mathrm{mol}^{-1} \mathrm{~K}^{-1}$ is approximately (assume, the universal gas c...

22Heat And Thermodynamics

How many rotational degrees of freedom does a rigid diatomic molecule have?

23Heat And Thermodynamics

Five moles of an ideal gas has pressure $p_0$, volume $V_0$ and temperature $T_0$. The gas is expanded to volume $3 V_0$ along a path, so that the pressure $p$ is changed as function of volume $V$ as $p=p_0\left(V / V_0\right)$. The pressur...

24Heat And Thermodynamics

A solid cylinder of radius $r_1=2.5 \mathrm{~cm}$, length $l_1=5.0 \mathrm{~cm}$ and temperature $40^{\circ} \mathrm{C}$ is suspended in an environment of temperature $60^{\circ} \mathrm{C}$. The thermal radiation transfer rate for cylinder...

25Heat And Thermodynamics

A solid of 2 kg mass absorbs 50 kJ when its temperature is raised from $20^{\circ} \mathrm{C}$ to $70^{\circ} \mathrm{C}$. The specific heat capacity of this solid in unit of $\mathrm{J} / \mathrm{kg}{ }^{\circ} \mathrm{C}$ is