371577
Certain amount of heat supplied to an ideal gas under isothermal conditions will result in
1 A rise in temperature
2 Doing external work and a change in temperature
3 Doing external work
4 An increase in the internal energy of the gas
Explanation:
At constant temp \(d U=0\) \(\therefore \quad d Q=d W\)
PHXI12:THERMODYNAMICS
371578
A gas is compressed isothermally. The rms velocity of its molecules
1 First increases and then decreases
2 Increases
3 Decreases
4 Remains the same
Explanation:
The root mean square velocity of a gas molecule is given by \(v_{\mathrm{rms}}=\sqrt{\dfrac{3 R T}{M}}\) Gas is compressed isothermally, so \(T\) remains constant and hence, root mean square velocity will remain same
PHXI12:THERMODYNAMICS
371579
One mole of an ideal monoatomic gas is compressed isothermally in a rigid vessel to double its pressure at room temperature, \(27^\circ C\). The work done on the gas will be:
1 \(300\,R\)
2 \(300\,R\ln 2\)
3 \(300\,\ln 6\)
4 \(300\,R\ln 7\)
Explanation:
Work done on gas \(=n R T \ln \left(\dfrac{p_{f}}{p_{i}}\right)=R(300) \ln (2)=300 R \ln 2\)
JEE - 2018
PHXI12:THERMODYNAMICS
371580
An ideal gas volume is increased from \(V\) to \(2\;V\) under isothermal conditions. The change in internal energy
371577
Certain amount of heat supplied to an ideal gas under isothermal conditions will result in
1 A rise in temperature
2 Doing external work and a change in temperature
3 Doing external work
4 An increase in the internal energy of the gas
Explanation:
At constant temp \(d U=0\) \(\therefore \quad d Q=d W\)
PHXI12:THERMODYNAMICS
371578
A gas is compressed isothermally. The rms velocity of its molecules
1 First increases and then decreases
2 Increases
3 Decreases
4 Remains the same
Explanation:
The root mean square velocity of a gas molecule is given by \(v_{\mathrm{rms}}=\sqrt{\dfrac{3 R T}{M}}\) Gas is compressed isothermally, so \(T\) remains constant and hence, root mean square velocity will remain same
PHXI12:THERMODYNAMICS
371579
One mole of an ideal monoatomic gas is compressed isothermally in a rigid vessel to double its pressure at room temperature, \(27^\circ C\). The work done on the gas will be:
1 \(300\,R\)
2 \(300\,R\ln 2\)
3 \(300\,\ln 6\)
4 \(300\,R\ln 7\)
Explanation:
Work done on gas \(=n R T \ln \left(\dfrac{p_{f}}{p_{i}}\right)=R(300) \ln (2)=300 R \ln 2\)
JEE - 2018
PHXI12:THERMODYNAMICS
371580
An ideal gas volume is increased from \(V\) to \(2\;V\) under isothermal conditions. The change in internal energy
371577
Certain amount of heat supplied to an ideal gas under isothermal conditions will result in
1 A rise in temperature
2 Doing external work and a change in temperature
3 Doing external work
4 An increase in the internal energy of the gas
Explanation:
At constant temp \(d U=0\) \(\therefore \quad d Q=d W\)
PHXI12:THERMODYNAMICS
371578
A gas is compressed isothermally. The rms velocity of its molecules
1 First increases and then decreases
2 Increases
3 Decreases
4 Remains the same
Explanation:
The root mean square velocity of a gas molecule is given by \(v_{\mathrm{rms}}=\sqrt{\dfrac{3 R T}{M}}\) Gas is compressed isothermally, so \(T\) remains constant and hence, root mean square velocity will remain same
PHXI12:THERMODYNAMICS
371579
One mole of an ideal monoatomic gas is compressed isothermally in a rigid vessel to double its pressure at room temperature, \(27^\circ C\). The work done on the gas will be:
1 \(300\,R\)
2 \(300\,R\ln 2\)
3 \(300\,\ln 6\)
4 \(300\,R\ln 7\)
Explanation:
Work done on gas \(=n R T \ln \left(\dfrac{p_{f}}{p_{i}}\right)=R(300) \ln (2)=300 R \ln 2\)
JEE - 2018
PHXI12:THERMODYNAMICS
371580
An ideal gas volume is increased from \(V\) to \(2\;V\) under isothermal conditions. The change in internal energy
371577
Certain amount of heat supplied to an ideal gas under isothermal conditions will result in
1 A rise in temperature
2 Doing external work and a change in temperature
3 Doing external work
4 An increase in the internal energy of the gas
Explanation:
At constant temp \(d U=0\) \(\therefore \quad d Q=d W\)
PHXI12:THERMODYNAMICS
371578
A gas is compressed isothermally. The rms velocity of its molecules
1 First increases and then decreases
2 Increases
3 Decreases
4 Remains the same
Explanation:
The root mean square velocity of a gas molecule is given by \(v_{\mathrm{rms}}=\sqrt{\dfrac{3 R T}{M}}\) Gas is compressed isothermally, so \(T\) remains constant and hence, root mean square velocity will remain same
PHXI12:THERMODYNAMICS
371579
One mole of an ideal monoatomic gas is compressed isothermally in a rigid vessel to double its pressure at room temperature, \(27^\circ C\). The work done on the gas will be:
1 \(300\,R\)
2 \(300\,R\ln 2\)
3 \(300\,\ln 6\)
4 \(300\,R\ln 7\)
Explanation:
Work done on gas \(=n R T \ln \left(\dfrac{p_{f}}{p_{i}}\right)=R(300) \ln (2)=300 R \ln 2\)
JEE - 2018
PHXI12:THERMODYNAMICS
371580
An ideal gas volume is increased from \(V\) to \(2\;V\) under isothermal conditions. The change in internal energy
