The temperature of a gas is $$-50^\circ \mathrm{C}$$. To what temperature the gas should be heated so that the rms speed is increased by $$3$$ times?
 1 $$223$$ $$\text{K}$$ 2 $$669^\circ \mathrm{C}$$ 3 $$3295^\circ \mathrm{C}$$ 4 $$3097$$ $$\text{K}$$
Subtopic: Â Types of Velocities |
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From NCERT
NEET - 2023
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The temperature at which the rms speed of atoms in neon gas is equal to the rms speed of hydrogen molecules at $$15^{\circ} \mathrm{C}$$ is: (Atomic mass of neon$$=20.2$$ u, molecular mass of hydrogen$$=2$$ u)
1. $$2.9\times10^{3}$$ K
2. $$2.9$$ K
3. $$0.15\times10^{3}$$ K
4. $$0.29\times10^{3}$$ K

Subtopic: Â Types of Velocities |
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From NCERT
NEET - 2022
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Three vessels of equal capacity have gases at the same temperature and pressure. The first vessel contains helium (monoatomic), the second contains fluorine (diatomic) and the third contains sulfur hexafluoride (polyatomic). The correct statement, among the following, is:
 1 all vessels contain unequal number of respective molecules. 2 the root mean square speed of molecules is same in all the three cases. 3 the root mean square speed of helium is the largest. 4 the root mean square speed of sulfur hexafluoride is the largest.
Subtopic: Â Types of Velocities |
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From NCERT
NEET - 2022
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