Free Printable THERMODYNAMICS

1.

A definite area or space where some thermodynamic process takes place is known as

a)

(A)thermodynamic system

b)

(b) thermodynamic cycle

c)

(c) thermodynamic process

d)

(c) thermodynamic process

2.

A system comprising a single phase is called a

a)

(a) closed system

b)

(b) open system

c)

(c) isolated system

d)

(d) homogeneous system

e)

(e) heterogeneous system.

3.

According to kinetic theory of heat

a)

(a) temperature should rise during boiling

b)

(b) temperature should fall during freezing

c)

(c) at low temperature all bodies are in solid state

d)

(d) at absolute zero there is absolutely no vibration of molecules

e)

(e) none of the above

4.

In an irreversible process, there is a

a)

(a) loss of heat

b)

(b) no loss of heat

c)

(c) gain of heat

d)

(d) no gain of heat.

5.

The heating and expanding of a gas is called

a)

(a) thermodynamic system

b)

(b) thermodynamic cycle

c)

(c) thermodynamic process

d)

(d) thermodynamic law.

6.

The amount of heat required to raise the temperature of 1 kg of water through 1°C is called

a)

(a) specific heat at constant volume

b)

(b) specific heat at constant pressure

c)

(c) kilo calorie

d)

(d) none of the above.

7.

The unit of energy in SI units is

(J)

a)

(a) Joule (J)

b)

(b) Joule metre (Jm)

c)

(c) Watt (W)

d)

(d) Joule/metre (J/m).

8.

Which of the following is correct ?

a)

(a) Absolute pressure = gauge pressure + atmospheric pressure

b)

(b) Gauge pressure = absolute pressure + atmospheric pressure

c)

(c) Atmospheric pressure = absolute pressure + gauge pressure

d)

(d) Absolute pressure = gauge pressure – atmospheric pressure

9.

The value of one bar (in SI units) is equal to

a)

(a) 100 N/m²

b)

(b) 1000 N/m²

c)

(c) 1 × 10⁴ N/m²

d)

(d) 1 × 10⁵ N/m²

e)

(e) 1 × 10⁶ N/m².

10.

In an extensive property of a thermodynamic system

a)

(a) extensive heat is transferred

b)

(b) extensive work is done

c)

(c) extensive energy is utilised

d)

(d) all of the above

e)

(e) none of the above.

11.

Which of the following is an intensive property of a thermodynamic system ?

a)

(a) Volume

b)

(b) Temperature

c)

(c) Mass

d)

(d) Energy.

12.

Which of the following is the extensive property of a thermodynamic system ?

a)

(a) Pressure

b)

(b) Volume

c)

(c) Temperature

d)

(d) Density.

13.

When two bodies are in thermal equilibrium with a third body they are also in thermal equilibrium with

each other. This statement is called

a)

(a) Zeroth law of thermodyamics

b)

(b) First law of thermodynamics

c)

(c) Second law of thermodynamics

d)

(d) Kelvin Planck’s law.

14.

Absolute zero temperature is taken as

a)

(a) – 273°C

b)

(b) 273°C

c)

(c) 237°C

d)

(d) – 373°C.

15.

The force exerted by the system on unit area of boundaries is called

a)

Pressure

b)

Volume

c)

density

d)

viscosity

16.

A system is in thermodynamic equilibrium

a)

if temperature and pressure at all points are same

b)

if temperature and pressure at all points are not same

c)

if temperature at all points are same

d)

if pressure at all points are same

17.

A pure substance is one that has even though there

is a change of phase

a)

a homogeneous

b)

a homogeneous and invariable chemical composition

c)

invariable chemical composition

d)

none of the above

THERMODYNAMICS

Total questions: 17

Worksheet time: 9mins

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