Thermodynamics (JEE (Based on NTA Guidelines-IIT Engg.) Advanced Physics): Questions 1 - 4 of 17

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Question number: 1

» Thermodynamics » Work in Thermodynamic Process and PV Diagrams

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Appeared in Year: 2014

MCQ▾

Question

A thermodynamic system is taken from an initial state with internal energy to the final state along two different paths and , as schematically shown in the figure. The work done by the system along the paths and are and , respectively. The heat supplied to the system along the path and are and respectively. If the internal energy of the system in the state is and , the ratio is:

PV diagram a thermodynamic system

PV Diagram a Thermodynamic System

In figure PV diagram a thermodynamic system is shown.

Choices

Choice (4) Response

a.

2

b.

5

c.

6

d.

4

Passage

An ideal gas is undergoing a cyclic thermodynamic process in different ways as shown in the corresponding diagrams in column of the table. Consider only the path from state 1 to state 2. denotes the corresponding work done on the system. The equations and plots in the table have standard notations as used in thermodynamic processes. Here is the ratio of heat capacities at constant pressure and constant volume. The number of moles in the gas is .

Work done, Thermodynamic Processes and PV diagram

In figure work done, thermodynamic processes and PV diagram are shown.

(I)

(i) Isothermal

(P)

PV diagram for path 1

PV Diagram for Path 1

In figure PV diagram is shown.

(II)

(ii) Isochoric

(Q)

PV diagram for path 2

PV Diagram for Path 2

In figure PV diagram is shown.

(III)

(iii) Isobaric

(R)

PV diagram for path 3

PV Diagram for Path 3

In figure PV diagram is shown.

(IV)

(iv) Adiabatic

(S)

PV diagram for path 4

PV Diagram for Path 4

In figure PV diagram is shown.

Question number: 2 (1 of 3 Based on Passage) Show Passage

» Thermodynamics » Work in Thermodynamic Process and PV Diagrams

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Appeared in Year: 2017

MCQ▾

Question

Which of the following options is the only correct representation of a process in which ?

Choices

Choice (4) Response

a.

(III) (iii) (P)

b.

(II) (iv) (R)

c.

(II) (iii) (P)

d.

(II) (iii) (S)

Question number: 3 (2 of 3 Based on Passage) Show Passage

» Thermodynamics » Work in Thermodynamic Process and PV Diagrams

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Appeared in Year: 2017

MCQ▾

Question

Which one of the following options is the correct combination?

Choices

Choice (4) Response

a.

(III) (ii) (S)

b.

(IV) (ii) (S)

c.

(II) (iv) (R)

d.

(II) (iv) (P)

Question number: 4 (3 of 3 Based on Passage) Show Passage

» Thermodynamics » Work in Thermodynamic Process and PV Diagrams

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Appeared in Year: 2017

MCQ▾

Question

Which one of the following options correctly represents a thermodynamic process that is used as a correction in the determination of the speed of sound in an ideal gas?

Choices

Choice (4) Response

a.

(I) (iv) (Q)

b.

(III) (iv) (R)

c.

(I) (ii) (Q)

d.

(IV) (ii) (R)

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