Entry Test MCQ :: Heat and Thermodynamics

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11.

According to Pascals law the pressure of gas in a vessel is

A.	Different in different direction	B.	Same in all direction
C.	Same only along opposite directions	D.	Same only along normal directions

12.

We can produce heat by

A.	Frictional process	B.	Chemical processes
C.	Electrical processes	D.	All of the above

13.

Which one is true for internal energy?

A.	It is sum of all forms of energies associated with molecules of a system	B.	It is a state function of a system
C.	It is proportional to transnational K.E of the molecules	D.	All are correct

14.

Metabolism is the name of a process in which energy transformation takes place within

A.	Heat engine	B.	Human body
C.	Atmosphere	D.	Laboratory

15.

Which one is not an example of adiabatic process ?

A.	rapid escape of air from a burst tyre	B.	rapid expansion of air
C.	conversion of water into ice in refrigerator	D.	cloud formation in the atmosphere

16.

The pressure exerted by a column of mercury 76cm high and at 0?C is called

A.	1 atmosphere	B.	1 Newton per square meter
C.	1 Pascal	D.	data is insufficient

17.

Standard condition STP refer to a gas at

A.	76cm 0?C	B.	760mm 273K
C.	1atm 273K	D.	all of the above

18.

If the volume of a gas is held constant and we increase its temperature then

A.	its pressure is constant	B.	its pressure rises
C.	its pressure falls	D.	any of above

19.

If the pressure of a given gas is held constant its density is inversely proportional to its absolute temperature. We can refer it as another statement of

A.	Boyles law	B.	Charles law
C.	Ideal gas law	D.	Avagadros law

20.

Boyles law helds for ideal gases in

A.	isochoric processes	B.	isobaric processes
C.	isothermal processes	D.	adiabatic processes