# First law of thermodynamics furnishes the relationship between

1.  Heat and work

2.  Heat, work and properties of the system

3.  Various properties of the system

4.  Various thermodynamic processes

4

Heat, work and properties of the system

Explanation :
No Explanation available for this question

# Change in enthalpy in a closed system is equal to heat transferred if the reversible process takes place at constant

1.  Pressure

2.  Temperature

3.  Volume

4.  Internal energy

4

Pressure

Explanation :
No Explanation available for this question

# In an isothermal process, the internal energy:

1.  Increases

2.  Decreases

3.  Remains constant

4.  First increases and then decreases

4

Remains constant

Explanation :
No Explanation available for this question

# Change in internal energy in a closed system is equal to heat transferred if the reversible process takes place at constant

1.  Pressure

2.  Temperature

3.  Volume

4.  Internal energy

4

Volume

Explanation :
No Explanation available for this question

# According to first law of thermodynamics

1.  Mass and energy are mutually convertible

2.  Carnot engine is most efficient

3.  Heat and work are mutually convertible

4.  Mass and light are mutually convertible

4

Heat and work are mutually convertible

Explanation :
No Explanation available for this question

# Total heat of a substance is also known as

1.  Internal energy

2.  Entropy

3.  Thermal capacity

4.  Enthalpy

4

Enthalpy

Explanation :
No Explanation available for this question

# First law of thermodynamics

1.  Enables to determine change in internal energy of the system

2.  Does not help to predict whether the system will or not undergo a change

3.  Does not enable to determine change in entropy

4.  All of the above.

4

All of the above.

Explanation :
No Explanation available for this question

# Addition of heat at constant pressure to a gas results in:

1.  Raising its temperature

2.  Raising its pressure

3.  Raising its volume

4.  Raising its temperature and doing external work

4

Raising its temperature and doing external work

Explanation :
No Explanation available for this question

# Carnot cycle has maximum efficiency for:

1.  Reversible engine

2.  Irreversible engine

3.  New engine

4.  Petrol engine

4

Reversible engine

Explanation :
No Explanation available for this question

# Measurement of temperature is based on

1.  Thermodynamic properties

2.  Zeroth law of thermodynamics

3.  First law of thermodynamics

4.  Second law of thermodynamics

4