Multiple-Choice Questions or Objective Type Questions on Thermodynamics [PDF Included]

Here is a list of few Multiple-Choice Questions on Thermodynamics. You can evaluate yourself and can come to know how much you are strong in the basics of a thermodynamics.

Further, it will help you in taking preparation for competitive examinations.

You may download the PDF format of this article. For downloading the same, go to the end of the article and click on the “PDF” icon.

Now, let us move into the MCQ questions.

Feature Image of Multiple-Choice Questions on Thermodynamics

MCQ Questions or Viva Questions on Thermodynamics

Appear for the test and evaluate yourself. There are total 20 numbers question in this MCQ based test.

Welcome to your MCQ on Thermodynamics systems

Thermodynamic process

Which of the following is true for an adiabatic process?

Pure substance

State true or false: The mixture of air and liquid air is a pure substance.

The laws of thermodynamics

The first law of thermodynamics states that____.

Thermodynamic properties

Heat flow into a system is taken to be ___.

Thermodynamic process

A diathermic wall is _____.

Thermodynamic properties

Which of the following is the intensive property?

Thermodynamic properties

A is in thermal equilibrium with a body B. A is also in thermal equilibrium with a body C. Then B and C will be in thermal equilibrium with each other as per ________.

Thermodynamic systems

Which one of the following is true for an isolated system?

Thermodynamic process

Work done in a free expansion process is

Thermodynamic properties

Properties of substances such as pressure and temperature in thermodynamic coordinates are___.

Thermodynamic properties

Which of the following law leads to the new property, known as entropy?

Thermodynamic systems

When there is a flow of energy with the surrounding, but there is no mass exchange; then the system is called as________.

Thermodynamic systems

When a system exchanges neither energy nor mass, it is a/an_______.

Thermodynamic systems

Which of the following is true in an adiabatic system?

Pure substance

A pure substance is a substance which is chemically___________and _______in chemical composition.

Thermodynamic properties

The point in a phase diagram where three phases can coexist in equilibrium is known as_____.

Thermodynamic properties

The triple point of water is_______.

Thermodynamic properties

The temperature of compressed liquid is ____________

Thermodynamic properties

The critical pressure and temperature of water is_________.

Thermodynamic properties

Find the force exerted by 150 kg, because of gravity at a location where the gravitational acceleration is 9.80 m/sec^2.

Questions are made from the laws of Thermodynamics, basic properties, and work-heat transfer.

Overview

If you want to get knowledge on an open system, closed system, and isolated system; intensive and extensive properties, pure substance, homogeneous and heterogeneous system; triple point and critical point and the laws of thermodynamic systems then you go through the following text.

Short questions on the thermodynamic system

What are the different types of thermodynamic systems?

The thermodynamic systems are of three types:

  • closed system
  • open system
  • isolated system

What is a closed system?

A closed system is a system which does not exchange mass with its surrounding. Hence, it has closed boundaries. But it may exchange energy with its surrounding.

What is an open system?

An open system exchanges heat or mass or both with its surrounding.

What is an isolated system?

An isolated system neither exchanges mass nor exchanges heat or energy with its surrounding. Thus, it is completely an isolated system.

What is an adiabatic system?

A thermodynamic system that is thermally isolated from its surrounding is called an adiabatic system. Therefore, no heat transfer occurs in this system.

Laws of Thermodynamics

State the zeroth law of thermodynamics.

When a substance A is in thermally equilibrium with substance B and substance C separately; the substances B and C are also in thermal equilibrium.

Based on zeroth law, we can measure the temperature.

State the first law of thermodynamics.

We can neither create nor destroy the energy. It transfers from one form to another.

State the second law of thermodynamics.

It is impossible to create a cyclic engine that converts all the heat supplied to it into the equivalent amount of work.

Also, there is another statement that says heat flows from a hot body to a cold body.

State the third law of thermodynamics.

Every action has an equal and opposite reaction.

Which are the intensive properties and extensive properties?

The properties that do not depend on the mass are intensive properties. The properties that varies with mass are extensive properties.

Pressure, temperature and specific volume, specific density are intensive properties whereas density, volume, energy are extensive properties.

Thank you. Best Wishes.

Tiulip

I love to educate myself. When I educate the little ones, I can educate myself in a better way. So I choose to educate all students with the help of advanced technology and that is by opening a site. Though by profession I am working in an MNC as a Mechanical Engineer, I love to educate from the beginning to build a career as a student.

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