The escape speed from the earth is 112104 ms so that a

Question

The escape speed from the Earth is 1.12*10⁴ m/s, so that a gas molecule travelling away from Earth near the outer boundary of the Earth's atmosphere would, at this speed, be able to escape from the Earth's gravitational field and be lost to the atmosphere. At what temperature is the average speed of the following equal to 1.12*10⁴ m/s?

1) Nitrogen molecules

2) Neon atoms