# Question: At what temperature would the average speed of helium

At what temperature would the average speed of helium atoms equal?

(a) The escape speed from Earth, 1.12 X 104 m/s and

(b) The escape speed from the Moon, 2.37 X 103 m/s? (See Chapter 13 for a discussion of escape speed, and note that the mass of a helium atom is 6.64 X 10-27 kg.)

(a) The escape speed from Earth, 1.12 X 104 m/s and

(b) The escape speed from the Moon, 2.37 X 103 m/s? (See Chapter 13 for a discussion of escape speed, and note that the mass of a helium atom is 6.64 X 10-27 kg.)

## Relevant Questions

A gas is at 0°C. If we wish to double the rms speed of its molecules, to what temperature must the gas be brought?Show that the mean free path for the molecules of an ideal gas isAs a 1.00-mol sample of a monatomic ideal gas expands adiabatically, the work done on it is - 2 500 J. The initial temperature and pressure of the gas are 500 K and 3.60 atm. Calculate (a) The final temperature and (b) ...Smokin’! A pitcher throws a 0.142-kg baseball at 47.2 m/s (Fig. P21.62). As it travels 19.4 m, the ball slows to a speed of 42.5 m/s because of air resistance. Find the change in temperature of the air through which it ...Dalton’s law of partial pressures states that the total pressure of a mixture of gases is equal to the sum of the partial pressures of gases making up the mixture. Give a convincing argument for this law based on the ...Post your question