JEE Advanced 2019 Paper 1 Offline | Heat and Thermodynamics Question 27 | Physics

JEE Advanced 2019 Paper 1 Offline

MCQ (More than One Correct Answer)

-1

One mole of a monatomic ideal gas goes through a thermodynamic cycle, as shown in the volume versus temperature (V-T) diagram. The correct statement(s) is/are [R is the gas constant]

JEE Advanced 2019 Paper 1 Offline Physics - Heat and Thermodynamics Question 41 English

JEE Advanced 2019 Paper 1 Offline Physics - Heat and Thermodynamics Question 41 English

Work done in this thermodynamic cycle (1$$ \to $$2$$ \to $$3$$ \to $$4$$ \to $$1) is $$\left| W \right| = {1 \over 2}R{T_0}$$.

The ratio of heat transfer during processes 1$$ \to $$2 and 2$$ \to $$3 is $$\left| {{{{Q_{1 \to 2}}} \over {{Q_{2 \to 3}}}}} \right| = {5 \over 3}$$

The above thermodynamic cycle exhibits only isochoric and adiabatic processes.

The ratio of heat transfer during processes 1$$ \to $$2 and 3$$ \to $$4 is $$\left| {{{{Q_{1 \to 2}}} \over {{Q_{3 \to 4}}}}} \right| = {1 \over 2}$$

JEE Advanced 2018 Paper 1 Offline

MCQ (More than One Correct Answer)

-1

One mole of a monatomic ideal gas undergoes a cyclic process as shown in the figure (where $$V$$ is the volume and $$T$$ is the temperature). Which of the statements below is (are) true?

JEE Advanced 2018 Paper 1 Offline Physics - Heat and Thermodynamics Question 51 English

JEE Advanced 2018 Paper 1 Offline Physics - Heat and Thermodynamics Question 51 English

Process $${\rm I}$$ is an isochoric process

In process $${\rm II}$$, gas absorbs heat

In process $${\rm IV}$$, gas releases heat

Process $${\rm I}$$ and $${\rm III}$$ are not isobaric

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 $${1 \over {\sqrt 2 }}$$

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