# Change in enthalpy of a system is the heat supplied at:

1.  Constant pressure

2.  Constant temperature

3.  Constant volume

4.  Constant entropy

4

Constant pressure

Explanation :
No Explanation available for this question

# The term N.T.P. stands for:

1.  Nominal temperature and pressure

2.  Natural temperature and pressure

3.  Normal temperature and pressure

4.  Normal thermodynamic practice

4

Normal temperature and pressure

Explanation :
No Explanation available for this question

# A heat exchange process in which the product of pressure and volume remains constant is known as:

1.  Heat exchange process

2.  Throttling process

3.  is entropic process

4.  Hyperbolic process.

4

Hyperbolic process.

Explanation :
No Explanation available for this question

# In an isothermal process, the internal energy of gas molecules:

1.  Increases

2.  Decreases

3.  Remains constant

4.  May increase/decrease depending on the properties of gas

4

Remains constant

Explanation :
No Explanation available for this question

# Zeroth law of thermodynamics:

1.  Deals with conversion of mass and energy

2.  Deals with reversibility and irreversibility of process

3.  States that if two systems are both in equilibrium with a third system, they are in thermal equilibrium with each other

4.  Deals with heat engines

4

States that if two systems are both in equilibrium with a third system, they are in thermal equilibrium with each other

Explanation :
No Explanation available for this question

# The basis for measuring thermodynamic property of temperature is given by:

1.  Zeroth law of thermodynamics

2.  First law of thermodynamics

3.  Second law of thermodynamics

4.  Third law of thermodynamics

4

Zeroth law of thermodynamics

Explanation :
No Explanation available for this question

# One watt is equal to:

1.  1 Nm/s

2.  1 N/mt

3.  1 Nm/hr

4.  1 kNm/hr

4

1 Nm/s

Explanation :
No Explanation available for this question

# Work done is zero for the following process:

1.  Constant volume

2.  Free expansion

3.  Throttling

4.  All of the above

4

All of the above

Explanation :
No Explanation available for this question

# For which of the following substances, the gas laws can be used with minimum error:

1.  Dry steam

2.  Wet steam

3.  Saturated steam

4.  Superheated steam

4

Superheated steam

Explanation :
No Explanation available for this question

# In a non-flow reversible process for which p = (- 3V+ 15) x 105N/m2, V changes from 1m to 2m3. The work done will be about

1.  100 x 1005 joules

2.  1x105 joules

3.  10 x105 joules

4.  10 x105 kilo joules

4