Degree of Freedom, Various speeds of Gas Molecules
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Kinetic Theory of Gases

139142 Which statements are correct about degrees of freedom?

1 B and C only
2 B and D only
3 A and B only
4 C and D only
Kinetic Theory of Gases

139146 Sound travels in a mixture of two moles of helium and $\mathbf{n}$ moles of hydrogen. If $\mathbf{r m s}$ speed of gas molecules in the mixture is $\sqrt{2}$ times the speed of sound, then the value of $n$ will be

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

139148 If the pressure is constant the temperature at which root mean square velocity of a gas will be half of its value at $0^{\circ} \mathrm{C}$ is

1 $-273^{\circ} \mathrm{C}$ or $0 \mathrm{~K}$
2 $-273 \mathrm{~K}$ or $-546^{\circ} \mathrm{C}$
3 $-204.75^{\circ} \mathrm{C}$ or $68.25 \mathrm{~K}$
4 $100 \mathrm{~K}$ or $-173^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139149 At what temperature, an oxygen molecule has the same r.m.s velocity as the hydrogen molecule has at $20 \mathrm{~K}$ ?

1 $160 \mathrm{~K}$
2 $320 \mathrm{~K}$
3 $293 \mathrm{~K}$
4 $347 \mathrm{~K}$
Kinetic Theory of Gases

139142 Which statements are correct about degrees of freedom?

1 B and C only
2 B and D only
3 A and B only
4 C and D only
Kinetic Theory of Gases

139146 Sound travels in a mixture of two moles of helium and $\mathbf{n}$ moles of hydrogen. If $\mathbf{r m s}$ speed of gas molecules in the mixture is $\sqrt{2}$ times the speed of sound, then the value of $n$ will be

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

139148 If the pressure is constant the temperature at which root mean square velocity of a gas will be half of its value at $0^{\circ} \mathrm{C}$ is

1 $-273^{\circ} \mathrm{C}$ or $0 \mathrm{~K}$
2 $-273 \mathrm{~K}$ or $-546^{\circ} \mathrm{C}$
3 $-204.75^{\circ} \mathrm{C}$ or $68.25 \mathrm{~K}$
4 $100 \mathrm{~K}$ or $-173^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139149 At what temperature, an oxygen molecule has the same r.m.s velocity as the hydrogen molecule has at $20 \mathrm{~K}$ ?

1 $160 \mathrm{~K}$
2 $320 \mathrm{~K}$
3 $293 \mathrm{~K}$
4 $347 \mathrm{~K}$
Kinetic Theory of Gases

139142 Which statements are correct about degrees of freedom?

1 B and C only
2 B and D only
3 A and B only
4 C and D only
Kinetic Theory of Gases

139146 Sound travels in a mixture of two moles of helium and $\mathbf{n}$ moles of hydrogen. If $\mathbf{r m s}$ speed of gas molecules in the mixture is $\sqrt{2}$ times the speed of sound, then the value of $n$ will be

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

139148 If the pressure is constant the temperature at which root mean square velocity of a gas will be half of its value at $0^{\circ} \mathrm{C}$ is

1 $-273^{\circ} \mathrm{C}$ or $0 \mathrm{~K}$
2 $-273 \mathrm{~K}$ or $-546^{\circ} \mathrm{C}$
3 $-204.75^{\circ} \mathrm{C}$ or $68.25 \mathrm{~K}$
4 $100 \mathrm{~K}$ or $-173^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139149 At what temperature, an oxygen molecule has the same r.m.s velocity as the hydrogen molecule has at $20 \mathrm{~K}$ ?

1 $160 \mathrm{~K}$
2 $320 \mathrm{~K}$
3 $293 \mathrm{~K}$
4 $347 \mathrm{~K}$
NEET Test Series from KOTA - 10 Papers In MS WORD WhatsApp Here
Kinetic Theory of Gases

139142 Which statements are correct about degrees of freedom?

1 B and C only
2 B and D only
3 A and B only
4 C and D only
Kinetic Theory of Gases

139146 Sound travels in a mixture of two moles of helium and $\mathbf{n}$ moles of hydrogen. If $\mathbf{r m s}$ speed of gas molecules in the mixture is $\sqrt{2}$ times the speed of sound, then the value of $n$ will be

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

139148 If the pressure is constant the temperature at which root mean square velocity of a gas will be half of its value at $0^{\circ} \mathrm{C}$ is

1 $-273^{\circ} \mathrm{C}$ or $0 \mathrm{~K}$
2 $-273 \mathrm{~K}$ or $-546^{\circ} \mathrm{C}$
3 $-204.75^{\circ} \mathrm{C}$ or $68.25 \mathrm{~K}$
4 $100 \mathrm{~K}$ or $-173^{\circ} \mathrm{C}$
Kinetic Theory of Gases

139149 At what temperature, an oxygen molecule has the same r.m.s velocity as the hydrogen molecule has at $20 \mathrm{~K}$ ?

1 $160 \mathrm{~K}$
2 $320 \mathrm{~K}$
3 $293 \mathrm{~K}$
4 $347 \mathrm{~K}$