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JEE Thermodynamics PYQs with Solutions

17 previous year questions from Thermodynamics (JEE Main & Advanced NSEP) with answers and solutions. Numbered list, year tags, and one-tap solutions — built for serious JEE / NEET practice.

17 questionsNSEPAnswers + solutions

About Thermodynamics PYQs

Thermodynamics has 17 previous year questions in the Quantrex Academy JEE Main & Advanced NSEP bank. The 17 questions in this list come from Olympiad workbook (17). Each question opens on its own page with the options, the correct answer and the worked solution where available.

Thermodynamics questions with solutions

The Sun having radius R and surface temperature T , emits radiation as a perfect emitter. The distance of the earth from the sun is r and the radius of the earth is R_ e . The

Olympiad workbook Solution View → 2

Graphs (drawn with the same scale) showing the variation of pressure with volume for a certain gas undergoing four different cyclic processes Λ, B, C and D are given below. The

Olympiad workbook Solution View → 3

The molar specific heat of an ideal gas in a certain thermodynamic process is (α)/(T) where α is a constant. If the adiabatic exponent is γ=(C_P)/(C_V) , the work done in heating

Olympiad workbook Solution View → 4

Under standard conditions of temperature and pressure a piece of ice melts completely on heating it. Obviously the increase in internal energy of the system (ice and water) is

Olympiad workbook Solution View → 5

If a system is made to undergo a change from an initial state to a final state by adiabatic process only, then

Olympiad workbook Solution View → 6

If the average mass of a smoke particle in an Indian kitchen is 3 × 10^ -17 ~kg , the rms speed of the smoke particles at 27^ ^ ^ ∘ C is approximately

Olympiad workbook Solution View → 7

A gas is made to undergo a change of state from an initial state to a final state along different paths by adiabatic process only. Therefore,

Olympiad workbook Solution View → 8

An ideal gas is expanding such that PT^3= constant. The coefficient of volume expansion of the gas is

Olympiad workbook Solution View → 9

One mole of a gas with γ=(5)/(3) is mixed with two moles of another non-interacting gas with γ=(7)/(5) The ratio of specific heats γ=(C_P)/(C_V) of mixture is approximately

Olympiad workbook Solution View → 10

The molar specific heat capacity of a certain gas is expressed as C=C_V+α (P)/(T) . The equation of state for the process can be written as ( α \ and ~A are constant)

Olympiad workbook Solution View → 11

Consider the process of the melting of a spherical ball of ice originally at 0^ ^ ^ ∘ Assuming that the heat is being absorbed uniformly through the surface and the rate of

Olympiad workbook Solution View → 12

The work done by the three moles of an ideal gas in the cyclic process A B C D shown in the diagram is approximately. Given that T_1=100 ~K, ~T_2=200 ~K and T_3=600 ~K, ~T_4=300 ~K

Olympiad workbook Solution View → 13

An ideal monatomic gas is confined within a cylinder by a spring loaded piston of cross-sectional area 4 × 10^ -3 ~m^2 . Initially the gas is at 400 K and occupies a volume 2 ×

Olympiad workbook Solution View → 14

Two identical Carnot (cycles) engines operate between maximum and minimum temperatures T_1 and T_2 and volume limits, V_2, ~V_ b , V_ c \ and ~V_ d as shown in figure. Given that

Olympiad workbook Solution View → 15

Two Carnot heat engines are connected in series such that the sink of the first engine is heat source of the second. Efficiency of the engines are η_1 and η_2 respectively. Net

Olympiad workbook Solution View → 16

An ideal gas ( n moles) is initially at pressure P and temperature T . It is cooled isochorically to a pressure (P)/(4) . The gas is then expanded at a constant pressure so as to

Olympiad workbook Solution View → 17

Two moles of nitrogen in a container, of negligible thermal capacity, are initially at 17^ ^ ^ ∘ C . The gas is compressed adiabatically from an initial volume of 120 liter to 80

Olympiad workbook Solution View →

Practice all Thermodynamics questions in the app →

Main Thermodynamics list

The larger JEE Thermodynamics list is under Physics (577 questions).

Related JEE NSEP chapters

Ray Optics (48)Electrostatics (33)Rotational Motion (32)Current Electricity (25)Waves and Sound (25)Mechanical Properties of Fluids (24)Magnetic Effects of Current (23)Dual Nature of Matter (20)Work, Power and Energy (18)Semiconductors (17)Oscillations (17)Thermal Properties of Matter (15)

Thermodynamics in other exams

NEET Thermodynamics (297)BITSAT Thermodynamics (32)