The temperature, at which the root mean square velocity of hydrogen molecules equals their escape velocity from the earth, is closest to [Boltzmann constant kB = 1.38 × 10 |
|||

(a) |
10 |
(b) |
650 K |

(c) |
800 K |
(d) |
3 × 10 |

The temperature, at which the root mean square velocity of hydrogen molecules equals their escape velocity from the earth, is closest to [Boltzmann constant kB = 1.38 × 10 |
|||

(a) |
10 |
(b) |
650 K |

(c) |
800 K |
(d) |
3 × 10 |

1 Answer

127 votes

v_{rms }= = 11.2 × 10^{3} m/s

⇒ T = × (11.2 × 10^{3})^{2}

= × 125.44 × 10^{6}

= 10^{4} K

127 votes

127