Specific Heat and Molar Heat Capacities
PHXI12:THERMODYNAMICS

371424 Two moles of helium are mixed with \(n\) moles of hydrogen. If \(\dfrac{C_{P}}{C_{V}}=\dfrac{3}{2}\) for the mixture then the value of \(n\) is

1 1
2 3
3 2
4 \(3 / 2\)
PHXI12:THERMODYNAMICS

371425 Two thermodynamical processes are shown in the figure. The molar heat capacity for process \({A}\) and \({B}\) are \({C_{A}}\) and \({C_{B}}\). The molar heat capacity at constant pressure and constant volume are represented by \({C_{P}}\) and \({C_{V}}\), respectively. Choose the correct statement.
supporting img

1 \({C_{A}=0}\) and \({C_{B}=\infty}\)
2 \({C_{A}>C_{P}>C_{V}}\)
3 \({C_{P}>C_{V}>C_{A}=C_{B}}\)
4 \({C_{A}=\infty, C_{B}=0}\)
PHXI12:THERMODYNAMICS

371426 Assertion :
\(C_{P}\) is always greater than \(C_{V}\), in gases.
Reason :
Work done by gas at constant pressure is more than at constant volume.

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 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI12:THERMODYNAMICS

371427 The molar specific heats of an ideal gas at constant pressure and volume are denoted by \(C_{p}\) and \(C_{v}\), respectively. If \(\gamma=\dfrac{C_{p}}{C_{v}}\) and \(R\) is the universal gas constant, then \(C_{v}\) is equal to

1 \(\frac{R}{{(\gamma - 1)}}\)
2 \(\dfrac{(\gamma-1)}{R}\)
3 \(\gamma R\)
4 \(\dfrac{1+\gamma}{1-\gamma}\)
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
PHXI12:THERMODYNAMICS

371424 Two moles of helium are mixed with \(n\) moles of hydrogen. If \(\dfrac{C_{P}}{C_{V}}=\dfrac{3}{2}\) for the mixture then the value of \(n\) is

1 1
2 3
3 2
4 \(3 / 2\)
PHXI12:THERMODYNAMICS

371425 Two thermodynamical processes are shown in the figure. The molar heat capacity for process \({A}\) and \({B}\) are \({C_{A}}\) and \({C_{B}}\). The molar heat capacity at constant pressure and constant volume are represented by \({C_{P}}\) and \({C_{V}}\), respectively. Choose the correct statement.
supporting img

1 \({C_{A}=0}\) and \({C_{B}=\infty}\)
2 \({C_{A}>C_{P}>C_{V}}\)
3 \({C_{P}>C_{V}>C_{A}=C_{B}}\)
4 \({C_{A}=\infty, C_{B}=0}\)
PHXI12:THERMODYNAMICS

371426 Assertion :
\(C_{P}\) is always greater than \(C_{V}\), in gases.
Reason :
Work done by gas at constant pressure is more than at constant volume.

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 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI12:THERMODYNAMICS

371427 The molar specific heats of an ideal gas at constant pressure and volume are denoted by \(C_{p}\) and \(C_{v}\), respectively. If \(\gamma=\dfrac{C_{p}}{C_{v}}\) and \(R\) is the universal gas constant, then \(C_{v}\) is equal to

1 \(\frac{R}{{(\gamma - 1)}}\)
2 \(\dfrac{(\gamma-1)}{R}\)
3 \(\gamma R\)
4 \(\dfrac{1+\gamma}{1-\gamma}\)
PHXI12:THERMODYNAMICS

371424 Two moles of helium are mixed with \(n\) moles of hydrogen. If \(\dfrac{C_{P}}{C_{V}}=\dfrac{3}{2}\) for the mixture then the value of \(n\) is

1 1
2 3
3 2
4 \(3 / 2\)
PHXI12:THERMODYNAMICS

371425 Two thermodynamical processes are shown in the figure. The molar heat capacity for process \({A}\) and \({B}\) are \({C_{A}}\) and \({C_{B}}\). The molar heat capacity at constant pressure and constant volume are represented by \({C_{P}}\) and \({C_{V}}\), respectively. Choose the correct statement.
supporting img

1 \({C_{A}=0}\) and \({C_{B}=\infty}\)
2 \({C_{A}>C_{P}>C_{V}}\)
3 \({C_{P}>C_{V}>C_{A}=C_{B}}\)
4 \({C_{A}=\infty, C_{B}=0}\)
PHXI12:THERMODYNAMICS

371426 Assertion :
\(C_{P}\) is always greater than \(C_{V}\), in gases.
Reason :
Work done by gas at constant pressure is more than at constant volume.

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 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI12:THERMODYNAMICS

371427 The molar specific heats of an ideal gas at constant pressure and volume are denoted by \(C_{p}\) and \(C_{v}\), respectively. If \(\gamma=\dfrac{C_{p}}{C_{v}}\) and \(R\) is the universal gas constant, then \(C_{v}\) is equal to

1 \(\frac{R}{{(\gamma - 1)}}\)
2 \(\dfrac{(\gamma-1)}{R}\)
3 \(\gamma R\)
4 \(\dfrac{1+\gamma}{1-\gamma}\)
PHXI12:THERMODYNAMICS

371424 Two moles of helium are mixed with \(n\) moles of hydrogen. If \(\dfrac{C_{P}}{C_{V}}=\dfrac{3}{2}\) for the mixture then the value of \(n\) is

1 1
2 3
3 2
4 \(3 / 2\)
PHXI12:THERMODYNAMICS

371425 Two thermodynamical processes are shown in the figure. The molar heat capacity for process \({A}\) and \({B}\) are \({C_{A}}\) and \({C_{B}}\). The molar heat capacity at constant pressure and constant volume are represented by \({C_{P}}\) and \({C_{V}}\), respectively. Choose the correct statement.
supporting img

1 \({C_{A}=0}\) and \({C_{B}=\infty}\)
2 \({C_{A}>C_{P}>C_{V}}\)
3 \({C_{P}>C_{V}>C_{A}=C_{B}}\)
4 \({C_{A}=\infty, C_{B}=0}\)
PHXI12:THERMODYNAMICS

371426 Assertion :
\(C_{P}\) is always greater than \(C_{V}\), in gases.
Reason :
Work done by gas at constant pressure is more than at constant volume.

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 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
PHXI12:THERMODYNAMICS

371427 The molar specific heats of an ideal gas at constant pressure and volume are denoted by \(C_{p}\) and \(C_{v}\), respectively. If \(\gamma=\dfrac{C_{p}}{C_{v}}\) and \(R\) is the universal gas constant, then \(C_{v}\) is equal to

1 \(\frac{R}{{(\gamma - 1)}}\)
2 \(\dfrac{(\gamma-1)}{R}\)
3 \(\gamma R\)
4 \(\dfrac{1+\gamma}{1-\gamma}\)