Thermodynamics (NEST (National Entrance Screening Test) Physics): Questions 1 - 3 of 5

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Question number: 1

» Thermodynamics » Thermodynamic Processes

Appeared in Year: 2007

MCQ▾

Question

Equation of hydrogen gas at standard temperature Equation and pressure Equation are contained in a cylinder with a movable piston. The walls of the cylinder and also the piston are insulated. If the gas is compressed to one third of its original volume, the pressure of the gas will be –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 2

» Thermodynamics » Carnot Engine and Its Efficiency

Appeared in Year: 2013

MCQ▾

Question

An engine absorbs heat at a temperature of Equation and exhausts heat at a temperature of Equation . The engine operates at the maximum possible efficiency. The amount of work the engine performs for Equation of heat input can be –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 3

» Thermodynamics » Thermal Equilibrium

Appeared in Year: 2015

MCQ▾

Question

A body of mass Equation with specific heat Equation at temperature Equation is brought into contact with an identical body at temperature Equation . The system is isolated from the surroundings during the process. The change in entropy of the system is –

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

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