1. Energy can neither be created nor destroyed, but it can be transformed from one form to another. This statement is known as ?

Zeroth law of thermodynamics

First law of thermodynamics

Second law of thermodynamics

Kinetic theory of gases

Answer: First law of thermodynamics

Explanation:


2. The measurement of a thermodynamic property known as temperature is based on ?

Zeroth law of thermodynamics

First law of thermodynamics

Second law of thermodynamics

none of these

Answer: Zeroth law of thermodynamics

Explanation:


3. The behaviour of a perfect gas, undergoing any change in the variables which control physical properties, is governed by ?

Boyle's law

Charles' law

Gay-Lussac law

all of these

Answer: all of these

Explanation:


4. When a gas is heated at constant pressure ?

its temperature will increase

its volume will increase

both temperature and volume will increase

neither temperature not volume will increase

Answer: both temperature and volume will increase

Explanation:


5. Second law of thermodynamics defines ?

heat

work

internal energy

entropy

Answer: entropy

Explanation:


6. When two bodies are in thermal equilibrium with a third body, they are also in thermal equilibrium with each other. This statement is called ?

Zeroth law of thermodynamics

First law of thermodynamics

Second law of thermodynamics

Kelvin Planck's law

Answer: Zeroth law of thermodynamics

Explanation:


7. Which of the following statement is correct ?

The heat and work are boundary phenomena

The heat and work represent the energy crossing the boundary of the system

The heat and work are path functions

all of the above

Answer: all of the above

Explanation:


8. In an extensive property of a thermodynamic system ?

extensive heat is transferred

extensive work is done

extensive energy is utilised

none of these

Answer: none of these

Explanation:


9. First law of thermodynamics deals with ?

conservation of heat

conservation of momentum

conservation of mass

conservation of energy

Answer: conservation of energy

Explanation:


10. The heat flows from a cold body to a hot body with the aid of an external source. This statement is given by ?

Kelvin

Joule

Clausis

Gay-Lussac

Answer: Clausis

Explanation: