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 × 10-23J/KAvogadro number, NA = 6.02 × 1026/kgRadius of Earth: 6.4 × 106 mGravitational acceleration on Earth = 10 ms-2]

The temperature, at which the root mean square velocity of hydrogen mo

1.	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 × 10-23J/KAvogadro number, NA = 6.02 × 1026/kgRadius of Earth: 6.4 × 106 mGravitational acceleration on Earth = 10 ms-2]
A.	800 K
B.	3 × 105 K
C.	104 K
D.	650 K
Answer» D. 650 K