Thermodynamic Processes
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PHXI12:THERMODYNAMICS

371594 An ideal gas system undergoes an isothermal process, then the work done during the process is

1 \(n R T \ln \dfrac{V_{2}}{V_{1}}\)
2 \(n R T \ln \dfrac{V_{1}}{V_{2}}\)
3 \(2 n R T \ln \dfrac{V_{2}}{V_{1}}\)
4 \(2 n R T \ln \left(\dfrac{V_{1}}{V_{2}}\right)\)
PHXI12:THERMODYNAMICS

371595 Assertion :
Molar heat capacity cannot be defined for isothermal process.
Reason :
In isothermal process, \(p-V\) versus \(T\) graph is a dot.

1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Both Assertion and Reason are incorrect.
4 Assertion is incorrect but Reason is correct.
AIIMS - 2017
PHXI12:THERMODYNAMICS

371596 A cylinder fitted with a piston contains 0.2 moles of air at temperature \(27^\circ C\). The piston is pushed so slowly that the air within the cylinder remains in thermal equilibrium with the sorroundings. Find the approximate work done by the system if the final volume is twice the initial volume.

1 \(543\;J\)
2 \(345\;J\)
3 \(453\;J\)
4 \(600\;J\)
PHXI12:THERMODYNAMICS

371597 For an isothermal expansion of a perfect gas, the value of \(\dfrac{\Delta P}{P}\) is equal to

1 \(\dfrac{\Delta V}{V}\)
2 \(-\gamma^{1 / 2} \dfrac{\Delta V}{V}\)
3 \(-\gamma^{2} \dfrac{\Delta V}{V}\)
4 \(-\gamma \dfrac{\Delta V}{V}\)
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PHXI12:THERMODYNAMICS

371594 An ideal gas system undergoes an isothermal process, then the work done during the process is

1 \(n R T \ln \dfrac{V_{2}}{V_{1}}\)
2 \(n R T \ln \dfrac{V_{1}}{V_{2}}\)
3 \(2 n R T \ln \dfrac{V_{2}}{V_{1}}\)
4 \(2 n R T \ln \left(\dfrac{V_{1}}{V_{2}}\right)\)
PHXI12:THERMODYNAMICS

371595 Assertion :
Molar heat capacity cannot be defined for isothermal process.
Reason :
In isothermal process, \(p-V\) versus \(T\) graph is a dot.

1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Both Assertion and Reason are incorrect.
4 Assertion is incorrect but Reason is correct.
AIIMS - 2017
PHXI12:THERMODYNAMICS

371596 A cylinder fitted with a piston contains 0.2 moles of air at temperature \(27^\circ C\). The piston is pushed so slowly that the air within the cylinder remains in thermal equilibrium with the sorroundings. Find the approximate work done by the system if the final volume is twice the initial volume.

1 \(543\;J\)
2 \(345\;J\)
3 \(453\;J\)
4 \(600\;J\)
PHXI12:THERMODYNAMICS

371597 For an isothermal expansion of a perfect gas, the value of \(\dfrac{\Delta P}{P}\) is equal to

1 \(\dfrac{\Delta V}{V}\)
2 \(-\gamma^{1 / 2} \dfrac{\Delta V}{V}\)
3 \(-\gamma^{2} \dfrac{\Delta V}{V}\)
4 \(-\gamma \dfrac{\Delta V}{V}\)
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PHXI12:THERMODYNAMICS

371594 An ideal gas system undergoes an isothermal process, then the work done during the process is

1 \(n R T \ln \dfrac{V_{2}}{V_{1}}\)
2 \(n R T \ln \dfrac{V_{1}}{V_{2}}\)
3 \(2 n R T \ln \dfrac{V_{2}}{V_{1}}\)
4 \(2 n R T \ln \left(\dfrac{V_{1}}{V_{2}}\right)\)
PHXI12:THERMODYNAMICS

371595 Assertion :
Molar heat capacity cannot be defined for isothermal process.
Reason :
In isothermal process, \(p-V\) versus \(T\) graph is a dot.

1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Both Assertion and Reason are incorrect.
4 Assertion is incorrect but Reason is correct.
AIIMS - 2017
PHXI12:THERMODYNAMICS

371596 A cylinder fitted with a piston contains 0.2 moles of air at temperature \(27^\circ C\). The piston is pushed so slowly that the air within the cylinder remains in thermal equilibrium with the sorroundings. Find the approximate work done by the system if the final volume is twice the initial volume.

1 \(543\;J\)
2 \(345\;J\)
3 \(453\;J\)
4 \(600\;J\)
PHXI12:THERMODYNAMICS

371597 For an isothermal expansion of a perfect gas, the value of \(\dfrac{\Delta P}{P}\) is equal to

1 \(\dfrac{\Delta V}{V}\)
2 \(-\gamma^{1 / 2} \dfrac{\Delta V}{V}\)
3 \(-\gamma^{2} \dfrac{\Delta V}{V}\)
4 \(-\gamma \dfrac{\Delta V}{V}\)
For More Updates join with Us
PHXI12:THERMODYNAMICS

371594 An ideal gas system undergoes an isothermal process, then the work done during the process is

1 \(n R T \ln \dfrac{V_{2}}{V_{1}}\)
2 \(n R T \ln \dfrac{V_{1}}{V_{2}}\)
3 \(2 n R T \ln \dfrac{V_{2}}{V_{1}}\)
4 \(2 n R T \ln \left(\dfrac{V_{1}}{V_{2}}\right)\)
PHXI12:THERMODYNAMICS

371595 Assertion :
Molar heat capacity cannot be defined for isothermal process.
Reason :
In isothermal process, \(p-V\) versus \(T\) graph is a dot.

1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Both Assertion and Reason are incorrect.
4 Assertion is incorrect but Reason is correct.
AIIMS - 2017
PHXI12:THERMODYNAMICS

371596 A cylinder fitted with a piston contains 0.2 moles of air at temperature \(27^\circ C\). The piston is pushed so slowly that the air within the cylinder remains in thermal equilibrium with the sorroundings. Find the approximate work done by the system if the final volume is twice the initial volume.

1 \(543\;J\)
2 \(345\;J\)
3 \(453\;J\)
4 \(600\;J\)
PHXI12:THERMODYNAMICS

371597 For an isothermal expansion of a perfect gas, the value of \(\dfrac{\Delta P}{P}\) is equal to

1 \(\dfrac{\Delta V}{V}\)
2 \(-\gamma^{1 / 2} \dfrac{\Delta V}{V}\)
3 \(-\gamma^{2} \dfrac{\Delta V}{V}\)
4 \(-\gamma \dfrac{\Delta V}{V}\)
NEET DIGITAL LIBRARY