01. First Law of Thermodynamics and Application
Thermodynamics

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

I. Increase in internal energy from state $A$ to state $B$ is $50 \mathrm{~J}$.
II. If path $\mathrm{ADB}$ is followed to reach state $\mathrm{B}$
$\Delta \mathbf{E}=50 \mathrm{~J}$.
III. If work done by the system in path $A B$ is $20 \mathrm{~J}$, the heat absorbed during path $\mathrm{AB}=70 \mathrm{~J}$
IV. The value $\mathrm{E}_C-\mathrm{E}_{\mathrm{A}}$ is equal to $\mathrm{E}_{\mathrm{D}}-\mathrm{E}_{\mathrm{B}}$.
V. Heat absorbed by the system to reach $B$ from $A$ through path $A D B$ is $60 \mathrm{~J}$.

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 $C_P$ and $C_V$ for one mole of an ideal gas? ( $R$ is molar gas constant)

1 $\mathrm{C}_{\mathrm{p}}=\mathrm{C}_{\mathrm{V}}-\mathrm{R}$
2 $\mathrm{C}_{\mathrm{P}}=\mathrm{C}_{\mathrm{V}}+\mathrm{R}$
3 $\mathrm{C}_{\mathrm{P}}=\mathrm{R}-\mathrm{C}_{\mathrm{V}}$
4 $C_p=C_V \times R$
5 $C_p=C_V / R$
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 $\Delta S>0$ 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 $\mathrm{ACB}$ by absorbing $80 \mathrm{~J}$ of heat energy. The work done by the system is $30 \mathrm{~J}$. The work done by the system in reaching state $B$ from $A$ is $10 J$ through path ADB. Which statements are correct?

I. Increase in internal energy from state $A$ to state $B$ is $50 \mathrm{~J}$.
II. If path $\mathrm{ADB}$ is followed to reach state $\mathrm{B}$
$\Delta \mathbf{E}=50 \mathrm{~J}$.
III. If work done by the system in path $A B$ is $20 \mathrm{~J}$, the heat absorbed during path $\mathrm{AB}=70 \mathrm{~J}$
IV. The value $\mathrm{E}_C-\mathrm{E}_{\mathrm{A}}$ is equal to $\mathrm{E}_{\mathrm{D}}-\mathrm{E}_{\mathrm{B}}$.
V. Heat absorbed by the system to reach $B$ from $A$ through path $A D B$ is $60 \mathrm{~J}$.

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 $C_P$ and $C_V$ for one mole of an ideal gas? ( $R$ is molar gas constant)

1 $\mathrm{C}_{\mathrm{p}}=\mathrm{C}_{\mathrm{V}}-\mathrm{R}$
2 $\mathrm{C}_{\mathrm{P}}=\mathrm{C}_{\mathrm{V}}+\mathrm{R}$
3 $\mathrm{C}_{\mathrm{P}}=\mathrm{R}-\mathrm{C}_{\mathrm{V}}$
4 $C_p=C_V \times R$
5 $C_p=C_V / R$
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 $\Delta S>0$ 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
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Thermodynamics

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

I. Increase in internal energy from state $A$ to state $B$ is $50 \mathrm{~J}$.
II. If path $\mathrm{ADB}$ is followed to reach state $\mathrm{B}$
$\Delta \mathbf{E}=50 \mathrm{~J}$.
III. If work done by the system in path $A B$ is $20 \mathrm{~J}$, the heat absorbed during path $\mathrm{AB}=70 \mathrm{~J}$
IV. The value $\mathrm{E}_C-\mathrm{E}_{\mathrm{A}}$ is equal to $\mathrm{E}_{\mathrm{D}}-\mathrm{E}_{\mathrm{B}}$.
V. Heat absorbed by the system to reach $B$ from $A$ through path $A D B$ is $60 \mathrm{~J}$.

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 $C_P$ and $C_V$ for one mole of an ideal gas? ( $R$ is molar gas constant)

1 $\mathrm{C}_{\mathrm{p}}=\mathrm{C}_{\mathrm{V}}-\mathrm{R}$
2 $\mathrm{C}_{\mathrm{P}}=\mathrm{C}_{\mathrm{V}}+\mathrm{R}$
3 $\mathrm{C}_{\mathrm{P}}=\mathrm{R}-\mathrm{C}_{\mathrm{V}}$
4 $C_p=C_V \times R$
5 $C_p=C_V / R$
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 $\Delta S>0$ 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 $\mathrm{ACB}$ by absorbing $80 \mathrm{~J}$ of heat energy. The work done by the system is $30 \mathrm{~J}$. The work done by the system in reaching state $B$ from $A$ is $10 J$ through path ADB. Which statements are correct?

I. Increase in internal energy from state $A$ to state $B$ is $50 \mathrm{~J}$.
II. If path $\mathrm{ADB}$ is followed to reach state $\mathrm{B}$
$\Delta \mathbf{E}=50 \mathrm{~J}$.
III. If work done by the system in path $A B$ is $20 \mathrm{~J}$, the heat absorbed during path $\mathrm{AB}=70 \mathrm{~J}$
IV. The value $\mathrm{E}_C-\mathrm{E}_{\mathrm{A}}$ is equal to $\mathrm{E}_{\mathrm{D}}-\mathrm{E}_{\mathrm{B}}$.
V. Heat absorbed by the system to reach $B$ from $A$ through path $A D B$ is $60 \mathrm{~J}$.

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 $C_P$ and $C_V$ for one mole of an ideal gas? ( $R$ is molar gas constant)

1 $\mathrm{C}_{\mathrm{p}}=\mathrm{C}_{\mathrm{V}}-\mathrm{R}$
2 $\mathrm{C}_{\mathrm{P}}=\mathrm{C}_{\mathrm{V}}+\mathrm{R}$
3 $\mathrm{C}_{\mathrm{P}}=\mathrm{R}-\mathrm{C}_{\mathrm{V}}$
4 $C_p=C_V \times R$
5 $C_p=C_V / R$
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 $\Delta S>0$ 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