NEW
New Website Launch
Experience the best way to solve previous year questions with mock tests (very detailed analysis), bookmark your favourite questions, practice etc...

## Heat and Thermodynamics

### Physics

#### Previous Years Questions

More
The value of $${Q \over {R{T_0}}}$$ is
JEE Advanced 2021 Paper 2 Online
The value of $${{{T_R}} \over {{T_0}}}$$ is
JEE Advanced 2021 Paper 2 Online
An ideal gas undergoes a four step cycle as shown in the P-V diagram below. During this cycle, heat is absorbed by the g...
JEE Advanced 2021 Paper 1 Offline
In a thermodynamic process on an ideal monatomic gas, the infinitesimal heat absorbed by the gas is given by T$$\Delta ... JEE Advanced 2019 Paper 2 Offline In a thermodynamic process on an ideal monatomic gas, the infinitesimal heat absorbed by the gas is given by T$$\Delta \$...
JEE Advanced 2019 Paper 2 Offline
One mole of a monatomic ideal gas undergoes four thermodynamic processes as shown schematically in the $$PV$$-diagram be...
JEE Advanced 2018 Paper 2 Offline
Which one of the following options correctly represents a thermodynamic process that is used as a correction in the dete...
JEE Advanced 2017 Paper 1 Offline
Which of the following options is the only correct representation of a process in which $$\Delta U = \Delta Q - P\Delta... JEE Advanced 2017 Paper 1 Offline Which one of the following options is the correct combination? JEE Advanced 2017 Paper 1 Offline A water cooler of storage capacity 120 litres can cool water at a constant rate of P watts. In a closed circulation sy... JEE Advanced 2016 Paper 1 Offline The ends Q and R of two thin wires, PQ and RS, are soldered (joined) together. Initially each of the wires has a length ... JEE Advanced 2016 Paper 2 Offline A gas is enclosed in a cylinder with a movable frictionless piston. Its initial thermodynamic state at pressure Pi = 105... JEE Advanced 2016 Paper 2 Offline Now consider the partition to be free to move without friction so that the pressure of gases in both compartments is the... JEE Advanced 2014 Paper 2 Offline Consider the partition to be rigidly fixed so that it does not move. When equilibrium is achieved, the final temperature... JEE Advanced 2014 Paper 2 Offline Parallel rays of light of intensity$$I$$= 912 Wm–2 are incident on a spherical black body kept in surroundings of temp... JEE Advanced 2014 Paper 2 Offline Two rectangular blocks, having identical dimensions, can be arranged in either configuration-I or configuration-II as sh... JEE Advanced 2013 Paper 1 Offline One mole of a monatomic ideal gas is taken along two cyclic processes E$$\to$$F$$\to$$G$$\to$$E and E$$\to$$F$$...
JEE Advanced 2013 Paper 2 Offline
Two non-reactive monoatomic ideal gases have their atomic masses in the ratio 2 : 3. The ratio of their partial pressure...
JEE Advanced 2013 Paper 1 Offline
Three very large plates of same area are kept parallel and close to each other. They are considered as ideal black surfa...
IIT-JEE 2012 Paper 1 Offline
Two moles of ideal helium gas are in a rubber balloon at 30oC. The balloon is fully expandable and can be assumed to req...
IIT-JEE 2012 Paper 2 Offline
A mixture of 2 moles of helium gas (atomic mass = 4 amu) and 1 mole of argon gas (atomic mass = 40 amu) is kept at 300 K...
IIT-JEE 2012 Paper 1 Offline
One mole of a monatomic gas is taken through a cycle ABCDA as shown in the PV diagram. Column II give the characteristic...
IIT-JEE 2011 Paper 2 Offline
5.6 liter of helium gas at STP is adiabatically compressed to 0.7 liter. Taking the initial temperature to be T1, the wo...
IIT-JEE 2011 Paper 1 Offline
A real gas behaves like an ideal gas if its
IIT-JEE 2010 Paper 1 Offline

## Numerical

More
A soft plastic bottle, filled with water of density 1 gm/cc, carries an inverted glass test-tube with some air (ideal ga...
JEE Advanced 2021 Paper 2 Online
A soft plastic bottle, filled with water of density 1 gm/cc, carries an inverted glass test-tube with some air (ideal ga...
JEE Advanced 2021 Paper 2 Online
A small object is placed at the center of a large evacuated hollow spherical container. Assume that the container is mai...
JEE Advanced 2021 Paper 1 Offline
A container with 1 kg of water in it is kept in sunlight, which causes the water to get warmer than the surroundings. Th...
JEE Advanced 2020 Paper 2 Offline
A spherical bubble inside water has radius R. Take the pressure inside the bubble and the water pressure to be p0. The b...
JEE Advanced 2020 Paper 2 Offline
A thermally isolated cylindrical closed vessel of height 8 m is kept vertically. It is divided into two equal parts by a...
JEE Advanced 2020 Paper 2 (Offline)
Consider one mole of helium gas enclosed in a container at initial pressure P1 and volume V1. It expands isothermally to...
JEE Advanced 2020 Paper 1 (Offline)
One mole of a monatomic ideal gas undergoes an adiabatic expansion in which its volume becomes eight times its initial v...
JEE Advanced 2018 Paper 2 Offline
A metal is heated in a furnace where a sensor is kept above the metal surface to read the power radiated (P) by the meta...
JEE Advanced 2016 Paper 1 Offline
Two spherical stars A and B emit blackbody radiation. The radius of A is 400 times that of B and A emits 104 times the p...
JEE Advanced 2015 Paper 1 Offline
A thermodynamic system is taken from an initial state i with internal energy Ui = 100 J to the final state f along two d...
JEE Advanced 2014 Paper 1 Offline
Steel wire of lenght ‘L’ at 40oC is suspended from the ceiling and then a mass ‘m’ is hung from its free end. The wire i...
IIT-JEE 2011 Paper 1 Offline
A diatomic ideal gas is compressed adiabatically $${1 \over {32}}$$ of its initial volume. If the initial temperature of...
IIT-JEE 2010 Paper 2 Offline
A piece of ice (heat capacity = 2100 J kg-1 oC-1 and latent heat = 3.36 $$\times$$ 105 J kg-1 ) of mass m grams is at ...
IIT-JEE 2010 Paper 1 Offline
Two spherical bodies A (radius 6 cm ) and B (radius 18 cm ) are at temperature T1 and T2, respectively. The maximum inte...
IIT-JEE 2010 Paper 1 Offline

## MCQ (More than One Correct Answer)

More
The filament of a light bulb has surface area 64 mm2 . The filament can be considered as a black body at temperature 250...
JEE Advanced 2020 Paper 1 (Offline)
A mixture of ideal gas containing 5 moles of monatomic gas and 1 mole of rigid diatomic gas is initially at pressure P0,...
JEE Advanced 2019 Paper 2 Offline
One mole of a monatomic ideal gas goes through a thermodynamic cycle, as shown in the volume versus temperature (V-T) di...
JEE Advanced 2019 Paper 1 Offline
One mole of a monatomic ideal gas undergoes a cyclic process as shown in the figure (where $$V$$ is the volume and $$T$$...
JEE Advanced 2018 Paper 1 Offline
An ideal monoatomic gas is confined in a horizontal cylinder by a spring loaded piston (as shown in the figure). Initial...
JEE Advanced 2015 Paper 2 Offline
A container of fixed volume has a mixture of one mole of hydrogen and one mole of helium in equilibrium at temperature T...
JEE Advanced 2015 Paper 1 Offline
The figure below shows the variation of specific heat capacity (C) of a solid as a function of temperature (T). The temp...
JEE Advanced 2013 Paper 2 Offline
One mole of an ideal gas in initial state A undergoes a cyclic process ABCA, as shown in the figure. Its pressure at A i...
IIT-JEE 2010 Paper 1 Offline

### Joint Entrance Examination

JEE Main JEE Advanced WB JEE

### Graduate Aptitude Test in Engineering

GATE CSE GATE ECE GATE EE GATE ME GATE CE GATE PI GATE IN

NEET

Class 12