00. First and Zeroth Law of Thermodynamics
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Thermodynamics

148081 A gas is compressed from a volume of $2 \mathrm{~m}^{3}$ to a volume of $1 \mathrm{~m}^{3}$ at a constant pressure of 100 $\mathrm{Nm}^{-2}$. Then it is heated at constant volume by supplying $150 \mathrm{~J}$ of energy. As a result, the internal energy of the gas

1 increases by $250 \mathrm{~J}$
2 decreases by $250 \mathrm{~J}$
3 decreases by $50 \mathrm{~J}$
4 increases by $50 \mathrm{~J}$
Thermodynamics

148082 In a thermodynamic process pressure of a fixed mass of a gas is changed in such a manner that the gas releases $30 \mathrm{~J}$ of heat and $10 \mathrm{~J}$ of work was done on the gas. If the initial internal energy of the gas was $10 \mathrm{~J}$, then the final internal energy will be

1 $2 \mathrm{~J}$
2 $-18 \mathrm{~J}$
3 $-10 \mathrm{~J}$
4 $58 \mathrm{~J}$
Thermodynamics

148085 An insulated system contains 4 moles of an ideal diatomic gas at temperature T. When a heat $Q$ is supplied to the gas, 2 moles of the gas is dissociated into atoms and the temperature remained constant. Then the relation between $Q$ and $T$ is
( $R=$ universal gas constant.)

1 $\mathrm{Q}=\mathrm{RT}$
2 $\mathrm{Q}=2 \mathrm{RT}$
3 $\mathrm{Q}=3 \mathrm{RT}$
4 $\mathrm{Q}=4 \mathrm{RT}$
Thermodynamics

148086 Three moles of an ideal monotomic gas performs a cycle ABCDA as shown in the figure. The temperatures of the gas at the states, A, B, C and D are $400 \mathrm{~K}, 800 \mathrm{~K}, 2400 \mathrm{~K}$ and $1200 \mathrm{~K}$, respectively. The work done by the gas during this cycle is ( $R$ is universal gas constant)

1 $1200 \mathrm{R}$
2 $3600 \mathrm{R}$
3 $2400 \mathrm{R}$
4 $2000 \mathrm{R}$
Thermodynamics

148081 A gas is compressed from a volume of $2 \mathrm{~m}^{3}$ to a volume of $1 \mathrm{~m}^{3}$ at a constant pressure of 100 $\mathrm{Nm}^{-2}$. Then it is heated at constant volume by supplying $150 \mathrm{~J}$ of energy. As a result, the internal energy of the gas

1 increases by $250 \mathrm{~J}$
2 decreases by $250 \mathrm{~J}$
3 decreases by $50 \mathrm{~J}$
4 increases by $50 \mathrm{~J}$
Thermodynamics

148082 In a thermodynamic process pressure of a fixed mass of a gas is changed in such a manner that the gas releases $30 \mathrm{~J}$ of heat and $10 \mathrm{~J}$ of work was done on the gas. If the initial internal energy of the gas was $10 \mathrm{~J}$, then the final internal energy will be

1 $2 \mathrm{~J}$
2 $-18 \mathrm{~J}$
3 $-10 \mathrm{~J}$
4 $58 \mathrm{~J}$
Thermodynamics

148085 An insulated system contains 4 moles of an ideal diatomic gas at temperature T. When a heat $Q$ is supplied to the gas, 2 moles of the gas is dissociated into atoms and the temperature remained constant. Then the relation between $Q$ and $T$ is
( $R=$ universal gas constant.)

1 $\mathrm{Q}=\mathrm{RT}$
2 $\mathrm{Q}=2 \mathrm{RT}$
3 $\mathrm{Q}=3 \mathrm{RT}$
4 $\mathrm{Q}=4 \mathrm{RT}$
Thermodynamics

148086 Three moles of an ideal monotomic gas performs a cycle ABCDA as shown in the figure. The temperatures of the gas at the states, A, B, C and D are $400 \mathrm{~K}, 800 \mathrm{~K}, 2400 \mathrm{~K}$ and $1200 \mathrm{~K}$, respectively. The work done by the gas during this cycle is ( $R$ is universal gas constant)

1 $1200 \mathrm{R}$
2 $3600 \mathrm{R}$
3 $2400 \mathrm{R}$
4 $2000 \mathrm{R}$
Thermodynamics

148081 A gas is compressed from a volume of $2 \mathrm{~m}^{3}$ to a volume of $1 \mathrm{~m}^{3}$ at a constant pressure of 100 $\mathrm{Nm}^{-2}$. Then it is heated at constant volume by supplying $150 \mathrm{~J}$ of energy. As a result, the internal energy of the gas

1 increases by $250 \mathrm{~J}$
2 decreases by $250 \mathrm{~J}$
3 decreases by $50 \mathrm{~J}$
4 increases by $50 \mathrm{~J}$
Thermodynamics

148082 In a thermodynamic process pressure of a fixed mass of a gas is changed in such a manner that the gas releases $30 \mathrm{~J}$ of heat and $10 \mathrm{~J}$ of work was done on the gas. If the initial internal energy of the gas was $10 \mathrm{~J}$, then the final internal energy will be

1 $2 \mathrm{~J}$
2 $-18 \mathrm{~J}$
3 $-10 \mathrm{~J}$
4 $58 \mathrm{~J}$
Thermodynamics

148085 An insulated system contains 4 moles of an ideal diatomic gas at temperature T. When a heat $Q$ is supplied to the gas, 2 moles of the gas is dissociated into atoms and the temperature remained constant. Then the relation between $Q$ and $T$ is
( $R=$ universal gas constant.)

1 $\mathrm{Q}=\mathrm{RT}$
2 $\mathrm{Q}=2 \mathrm{RT}$
3 $\mathrm{Q}=3 \mathrm{RT}$
4 $\mathrm{Q}=4 \mathrm{RT}$
Thermodynamics

148086 Three moles of an ideal monotomic gas performs a cycle ABCDA as shown in the figure. The temperatures of the gas at the states, A, B, C and D are $400 \mathrm{~K}, 800 \mathrm{~K}, 2400 \mathrm{~K}$ and $1200 \mathrm{~K}$, respectively. The work done by the gas during this cycle is ( $R$ is universal gas constant)

1 $1200 \mathrm{R}$
2 $3600 \mathrm{R}$
3 $2400 \mathrm{R}$
4 $2000 \mathrm{R}$
Thermodynamics

148081 A gas is compressed from a volume of $2 \mathrm{~m}^{3}$ to a volume of $1 \mathrm{~m}^{3}$ at a constant pressure of 100 $\mathrm{Nm}^{-2}$. Then it is heated at constant volume by supplying $150 \mathrm{~J}$ of energy. As a result, the internal energy of the gas

1 increases by $250 \mathrm{~J}$
2 decreases by $250 \mathrm{~J}$
3 decreases by $50 \mathrm{~J}$
4 increases by $50 \mathrm{~J}$
Thermodynamics

148082 In a thermodynamic process pressure of a fixed mass of a gas is changed in such a manner that the gas releases $30 \mathrm{~J}$ of heat and $10 \mathrm{~J}$ of work was done on the gas. If the initial internal energy of the gas was $10 \mathrm{~J}$, then the final internal energy will be

1 $2 \mathrm{~J}$
2 $-18 \mathrm{~J}$
3 $-10 \mathrm{~J}$
4 $58 \mathrm{~J}$
Thermodynamics

148085 An insulated system contains 4 moles of an ideal diatomic gas at temperature T. When a heat $Q$ is supplied to the gas, 2 moles of the gas is dissociated into atoms and the temperature remained constant. Then the relation between $Q$ and $T$ is
( $R=$ universal gas constant.)

1 $\mathrm{Q}=\mathrm{RT}$
2 $\mathrm{Q}=2 \mathrm{RT}$
3 $\mathrm{Q}=3 \mathrm{RT}$
4 $\mathrm{Q}=4 \mathrm{RT}$
Thermodynamics

148086 Three moles of an ideal monotomic gas performs a cycle ABCDA as shown in the figure. The temperatures of the gas at the states, A, B, C and D are $400 \mathrm{~K}, 800 \mathrm{~K}, 2400 \mathrm{~K}$ and $1200 \mathrm{~K}$, respectively. The work done by the gas during this cycle is ( $R$ is universal gas constant)

1 $1200 \mathrm{R}$
2 $3600 \mathrm{R}$
3 $2400 \mathrm{R}$
4 $2000 \mathrm{R}$