1.  50 cc of water at 250C mixed with 150 cc of water at 250C

2.  500 cc of milk at 150C are mixed with 100 cc of water at 150C

3.  5 kg of west steam at 1000C is mixed with 50 kg of dry and saturated steam at 1000C

4.  10 cc of water at 200C are mixed with 10 cc of sulphuric acid at 200C.

4
Correct Answer :

10 cc of water at 200C are mixed with 10 cc of sulphuric acid at 200C.


Explanation :
No Explanation available for this question

1.  A free expansion is a non-quasistatic process

2.  The pressure and volume of gas are not related through the equation of states

3.  The process is irreversible

4.  The energy is transferred to the system

4
Correct Answer :

The energy is transferred to the system


Explanation :
No Explanation available for this question

1.  A rigid steel vessel containing steam at a temperature of 1100C is left standing in the atmosphere which is at a temperature of 320C

2.  One kg of air flows adiabatically from the atmosphere into a previously evacuated bottle

3.  A rigid vessel containing ammonia gas is connected through a valve to an evacuated rigid vessel. The vessels, the valve and the connecting pipe are well insulated. The valve is opened and after a time, conditions through the two vessels become uniform

4.  A mixture of ice and water is contained in an insulated vertical cylinder closed at the top by a non-conducting piston; the upper surface is exposed to the atmosphere. The piston is held stationary while the mixture is stirred by means of a paddle-wheel protruding through the cylinder wall as a result some of the ice melts

5.  Both (b) and (d)

5
Correct Answer :

Both (b) and (d)


Explanation :
No Explanation available for this question

1.  A

2.  B

3.  C

4.  D

4
Correct Answer :

C


Explanation :
No Explanation available for this question

1.  Any adiabatic process

2.  Only reversible adiabatic process

3.  Only irreversible adiabatic process

4.  Only isothermal process

4
Correct Answer :

Only reversible adiabatic process


Explanation :
No Explanation available for this question

1.  It is a simple compressible system undergoing reversible process

2.  It is a pure substance undergoing infinitesimal process

3.  It is undergoing an irreversible process

4.  It is undergoing an isentropic process

4
Correct Answer :

It is a simple compressible system undergoing reversible process


Explanation :
No Explanation available for this question

1.  Any gas undergoing an adiabatic process

2.  An ideal gas undergoing a polytrophic process

3.  Any pure substance undergoing an adiabatic process

4.  An ideal gas undergoing a reversible adiabatic process

4
Correct Answer :

An ideal gas undergoing a reversible adiabatic process


Explanation :
No Explanation available for this question

1.  Zero

2.  Nearly 30 Nm

3.  3 Nm

4.  None of these

4
Correct Answer :

Nearly 30 Nm


Explanation :
No Explanation available for this question

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