01. First Law of Thermodynamics and Application
Thermodynamics

272688 A system is allowed to move from state A to B following path ACB by absorbing 80 J of heat energy. The work done by the system is 30 J. The work done by the system in reaching state B from A is 10J through path ADB. Which statements are correct?

I. Increase in internal energy from state A to state B is 50 J.
II. If path ADB is followed to reach state B
ΔE=50 J.
III. If work done by the system in path AB is 20 J, the heat absorbed during path AB=70 J
IV. The value ECEA is equal to EDEB.
V. Heat absorbed by the system to reach B from A through path ADB is 60 J.

1 I, V
2 I, III, V
3 I, II, III, V
4 I, IV, V
Thermodynamics

272655 Which one of the following is the correct relation between CP and CV for one mole of an ideal gas? ( R is molar gas constant)

1 Cp=CVR
2 CP=CV+R
3 CP=RCV
4 Cp=CV×R
5 Cp=CV/R
Thermodynamics

272657 Consider the following statements:
1.One kind of energy can be converted into an exactly equivalent amount of other kind of energy.
2.Continuous production of mechanical work is possible without the supply of equivalent quantity of heat.
Which of the statements given above is/are contrary to first law of thermodynamics?

1 1 only
2 2 only
3 Both 1 and 2
4 Neither 1 nor 2
Thermodynamics

272688 A system is allowed to move from state A to B following path ACB by absorbing 80 J of heat energy. The work done by the system is 30 J. The work done by the system in reaching state B from A is 10J through path ADB. Which statements are correct?

I. Increase in internal energy from state A to state B is 50 J.
II. If path ADB is followed to reach state B
ΔE=50 J.
III. If work done by the system in path AB is 20 J, the heat absorbed during path AB=70 J
IV. The value ECEA is equal to EDEB.
V. Heat absorbed by the system to reach B from A through path ADB is 60 J.

1 I, V
2 I, III, V
3 I, II, III, V
4 I, IV, V
Thermodynamics

272655 Which one of the following is the correct relation between CP and CV for one mole of an ideal gas? ( R is molar gas constant)

1 Cp=CVR
2 CP=CV+R
3 CP=RCV
4 Cp=CV×R
5 Cp=CV/R
Thermodynamics

272656 Consider following statements:

1 (a) and (b)
2 (a) and (d)
3 (c) and (e)
4 (b) and (d)
5 For an adiabatic process ΔS>0 wrong statements are :
Thermodynamics

272657 Consider the following statements:
1.One kind of energy can be converted into an exactly equivalent amount of other kind of energy.
2.Continuous production of mechanical work is possible without the supply of equivalent quantity of heat.
Which of the statements given above is/are contrary to first law of thermodynamics?

1 1 only
2 2 only
3 Both 1 and 2
4 Neither 1 nor 2
Thermodynamics

272688 A system is allowed to move from state A to B following path ACB by absorbing 80 J of heat energy. The work done by the system is 30 J. The work done by the system in reaching state B from A is 10J through path ADB. Which statements are correct?

I. Increase in internal energy from state A to state B is 50 J.
II. If path ADB is followed to reach state B
ΔE=50 J.
III. If work done by the system in path AB is 20 J, the heat absorbed during path AB=70 J
IV. The value ECEA is equal to EDEB.
V. Heat absorbed by the system to reach B from A through path ADB is 60 J.

1 I, V
2 I, III, V
3 I, II, III, V
4 I, IV, V
Thermodynamics

272655 Which one of the following is the correct relation between CP and CV for one mole of an ideal gas? ( R is molar gas constant)

1 Cp=CVR
2 CP=CV+R
3 CP=RCV
4 Cp=CV×R
5 Cp=CV/R
Thermodynamics

272656 Consider following statements:

1 (a) and (b)
2 (a) and (d)
3 (c) and (e)
4 (b) and (d)
5 For an adiabatic process ΔS>0 wrong statements are :
Thermodynamics

272657 Consider the following statements:
1.One kind of energy can be converted into an exactly equivalent amount of other kind of energy.
2.Continuous production of mechanical work is possible without the supply of equivalent quantity of heat.
Which of the statements given above is/are contrary to first law of thermodynamics?

1 1 only
2 2 only
3 Both 1 and 2
4 Neither 1 nor 2
Thermodynamics

272688 A system is allowed to move from state A to B following path ACB by absorbing 80 J of heat energy. The work done by the system is 30 J. The work done by the system in reaching state B from A is 10J through path ADB. Which statements are correct?

I. Increase in internal energy from state A to state B is 50 J.
II. If path ADB is followed to reach state B
ΔE=50 J.
III. If work done by the system in path AB is 20 J, the heat absorbed during path AB=70 J
IV. The value ECEA is equal to EDEB.
V. Heat absorbed by the system to reach B from A through path ADB is 60 J.

1 I, V
2 I, III, V
3 I, II, III, V
4 I, IV, V
Thermodynamics

272655 Which one of the following is the correct relation between CP and CV for one mole of an ideal gas? ( R is molar gas constant)

1 Cp=CVR
2 CP=CV+R
3 CP=RCV
4 Cp=CV×R
5 Cp=CV/R
Thermodynamics

272656 Consider following statements:

1 (a) and (b)
2 (a) and (d)
3 (c) and (e)
4 (b) and (d)
5 For an adiabatic process ΔS>0 wrong statements are :
Thermodynamics

272657 Consider the following statements:
1.One kind of energy can be converted into an exactly equivalent amount of other kind of energy.
2.Continuous production of mechanical work is possible without the supply of equivalent quantity of heat.
Which of the statements given above is/are contrary to first law of thermodynamics?

1 1 only
2 2 only
3 Both 1 and 2
4 Neither 1 nor 2