Degree of Freedom, Various speeds of Gas Molecules
Kinetic Theory of Gases

139118 The temperature, at which the rms velocity of hydrogen is four times of its value at NTP is

1 $819^{\circ} \mathrm{C}$
2 $1092^{\circ} \mathrm{C}$
3 $4368^{\circ} \mathrm{C}$
4 $4095^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139119 The mean kinetic energy of monoatomic gas molecules under standard conditions is $\left\langle E_{1}\right\rangle$. If the gas is compressed adiabatically 8 times to its initial volume, the mean kinetic energy of gas molecules changes to $\left\langle E_{2}\right\rangle$. The ratio $\frac{\left\langle E_{2}\right\rangle}{\left\langle E_{1}\right\rangle}$ is

1 2
2 4
3 6
4 8
Kinetic Theory of Gases

139120 The temperature at which the r.m.s speed of molecules in hydrogen gas will be double of its initial value at $27^{\circ} \mathrm{C}$ is

1 $300^{\circ} \mathrm{C}$
2 $1473^{\circ} \mathrm{C}$
3 $927^{\circ} \mathrm{C}$
4 $546^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139121 The r.m.s. velocity of hydrogen molecules at temperature $T$ is seven times the r.m.s. velocity of nitrogen molecules at $300 \mathrm{~K}$. This temperature $T$ is (Molecular weights of hydrogen and nitrogen are 2 and 28 respectively)

1 $1350 \mathrm{~K}$
2 $1700 \mathrm{~K}$
3 $1050 \mathrm{~K}$
4 $2100 \mathrm{~K}$
Kinetic Theory of Gases

139118 The temperature, at which the rms velocity of hydrogen is four times of its value at NTP is

1 $819^{\circ} \mathrm{C}$
2 $1092^{\circ} \mathrm{C}$
3 $4368^{\circ} \mathrm{C}$
4 $4095^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139119 The mean kinetic energy of monoatomic gas molecules under standard conditions is $\left\langle E_{1}\right\rangle$. If the gas is compressed adiabatically 8 times to its initial volume, the mean kinetic energy of gas molecules changes to $\left\langle E_{2}\right\rangle$. The ratio $\frac{\left\langle E_{2}\right\rangle}{\left\langle E_{1}\right\rangle}$ is

1 2
2 4
3 6
4 8
Kinetic Theory of Gases

139120 The temperature at which the r.m.s speed of molecules in hydrogen gas will be double of its initial value at $27^{\circ} \mathrm{C}$ is

1 $300^{\circ} \mathrm{C}$
2 $1473^{\circ} \mathrm{C}$
3 $927^{\circ} \mathrm{C}$
4 $546^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139121 The r.m.s. velocity of hydrogen molecules at temperature $T$ is seven times the r.m.s. velocity of nitrogen molecules at $300 \mathrm{~K}$. This temperature $T$ is (Molecular weights of hydrogen and nitrogen are 2 and 28 respectively)

1 $1350 \mathrm{~K}$
2 $1700 \mathrm{~K}$
3 $1050 \mathrm{~K}$
4 $2100 \mathrm{~K}$
Kinetic Theory of Gases

139118 The temperature, at which the rms velocity of hydrogen is four times of its value at NTP is

1 $819^{\circ} \mathrm{C}$
2 $1092^{\circ} \mathrm{C}$
3 $4368^{\circ} \mathrm{C}$
4 $4095^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139119 The mean kinetic energy of monoatomic gas molecules under standard conditions is $\left\langle E_{1}\right\rangle$. If the gas is compressed adiabatically 8 times to its initial volume, the mean kinetic energy of gas molecules changes to $\left\langle E_{2}\right\rangle$. The ratio $\frac{\left\langle E_{2}\right\rangle}{\left\langle E_{1}\right\rangle}$ is

1 2
2 4
3 6
4 8
Kinetic Theory of Gases

139120 The temperature at which the r.m.s speed of molecules in hydrogen gas will be double of its initial value at $27^{\circ} \mathrm{C}$ is

1 $300^{\circ} \mathrm{C}$
2 $1473^{\circ} \mathrm{C}$
3 $927^{\circ} \mathrm{C}$
4 $546^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139121 The r.m.s. velocity of hydrogen molecules at temperature $T$ is seven times the r.m.s. velocity of nitrogen molecules at $300 \mathrm{~K}$. This temperature $T$ is (Molecular weights of hydrogen and nitrogen are 2 and 28 respectively)

1 $1350 \mathrm{~K}$
2 $1700 \mathrm{~K}$
3 $1050 \mathrm{~K}$
4 $2100 \mathrm{~K}$
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Kinetic Theory of Gases

139118 The temperature, at which the rms velocity of hydrogen is four times of its value at NTP is

1 $819^{\circ} \mathrm{C}$
2 $1092^{\circ} \mathrm{C}$
3 $4368^{\circ} \mathrm{C}$
4 $4095^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139119 The mean kinetic energy of monoatomic gas molecules under standard conditions is $\left\langle E_{1}\right\rangle$. If the gas is compressed adiabatically 8 times to its initial volume, the mean kinetic energy of gas molecules changes to $\left\langle E_{2}\right\rangle$. The ratio $\frac{\left\langle E_{2}\right\rangle}{\left\langle E_{1}\right\rangle}$ is

1 2
2 4
3 6
4 8
Kinetic Theory of Gases

139120 The temperature at which the r.m.s speed of molecules in hydrogen gas will be double of its initial value at $27^{\circ} \mathrm{C}$ is

1 $300^{\circ} \mathrm{C}$
2 $1473^{\circ} \mathrm{C}$
3 $927^{\circ} \mathrm{C}$
4 $546^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139121 The r.m.s. velocity of hydrogen molecules at temperature $T$ is seven times the r.m.s. velocity of nitrogen molecules at $300 \mathrm{~K}$. This temperature $T$ is (Molecular weights of hydrogen and nitrogen are 2 and 28 respectively)

1 $1350 \mathrm{~K}$
2 $1700 \mathrm{~K}$
3 $1050 \mathrm{~K}$
4 $2100 \mathrm{~K}$