JEE Advanced 2015 Paper 2 Offline | Heat and Thermodynamics Question 38 | Physics

JEE Advanced 2015 Paper 2 Offline

MCQ (More than One Correct Answer)

-2

An ideal monoatomic gas is confined in a horizontal cylinder by a spring loaded piston (as shown in the figure). Initially the gas is at temperature T₁, pressure P₁ and volume V₁ and the spring is in its relaxed state. The gas is then heated very slowly to temperature T₂, pressure P₂ and volume V₂. During this process the piston moves out by a distance x.

Ignoring the friction between the piston and the cylinder, the correct statements is/are

JEE Advanced 2015 Paper 2 Offline Physics - Heat and Thermodynamics Question 35 English

JEE Advanced 2015 Paper 2 Offline Physics - Heat and Thermodynamics Question 35 English

If V₂ = 2V₁ and T₂ = 3T_l, then the energy stored in the spring is $${1 \over 4}{P_1}{V_1}$$

If V₂ = 2V₁ and T₂ = 3T₁, then the change in internal energy is $$3{P_1}{V_1}$$

If V₂ = 3V₁ and T₂ = 4T₁, then the work done by the gas is $${7 \over 3}{P_1}{V_1}$$

If V₂ = 3V₁ and T₂ = 4T₁, then the heat supplied to the gas is $${17 \over 6}{P_1}{V_1}$$

JEE Advanced 2015 Paper 1 Offline

MCQ (More than One Correct Answer)

-2

A container of fixed volume has a mixture of one mole of hydrogen and one mole of helium in equilibrium at temperature T. Assuming the gases are ideal, the correct statement(s) is(are)

The average energy per mole of the gas mixture is 2RT

The ratio of speed of sound in the gas mixture to that in helium gas is $$\sqrt {{6 \over 5}} $$

The ratio of the rms speed of helium atoms to that of hydrogen molecules is $${1 \over 2}$$

The ratio of the rms speed of helium atoms to that of hydrogen molecules is $${1 \over {\sqrt 2 }}$$

JEE Advanced 2013 Paper 2 Offline

MCQ (More than One Correct Answer)

-2

The figure below shows the variation of specific heat capacity (C) of a solid as a function of temperature (T). The temperature is increased continuously from 0 to 500 K at a constant rate. Ignoring any volume change, the following statement(s) is(are) correct to a reasonable approximation.

JEE Advanced 2013 Paper 2 Offline Physics - Heat and Thermodynamics Question 24 English

The rate at which heat is absorbed in the range 0-100 K varies linearly with temperature T.

Heat absorbed in increasing the temperature from 0-100 K is less than the heat required for increasing the temperature from 400-500 K.

There is no change in the rate of heat absorption in the range 400-500 K.

The rate of heat absorption increases in the range 200-300 K.

IIT-JEE 2010 Paper 1 Offline

MCQ (More than One Correct Answer)

-2

One mole of an ideal gas in initial state A undergoes a cyclic process ABCA, as shown in the figure. Its pressure at A is P₀. Choose the correct option(s) from the following:

IIT-JEE 2010 Paper 1 Offline Physics - Heat and Thermodynamics Question 20 English

Internal energies at A and B are the same.

Work done by the gas in process AB is P₀V₀ ln4.

Pressure at C is P₀/4.

Temperature at C is T₀/4.

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