(a) What is the rms speed of a Helium atom in Helium gas at STP?
(a) What is the rms speed of a Helium atom in Helium gas at STP? (b) What
temperature would oxygen gas have if the rms speed of its atoms was the same as in part
- WoodsmanLv 73 years agoFavorite Answer
STP temperature is 0 ºC = 273 K
Vrms = √(3RT / M)
(a) Vrms = √(3 * 8.314J/mol·K * 273K / 0.004kg/mol) = 1305 m/s
(b) Oxygen gas is diatomic, 32 g/mol, so
1305 m/s = √(3 * 8.314J/mol·K * T / 0.032kg/mol)
T = 2185 K = 2458 K
Hope this helps!
- 3 years ago
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