Air at a pressure of 1.0 atm and a temperature of 293 K contains 21% by...
Air at a pressure of 1.0 atm and a temperature of 293 K contains 21% by volume of oxygen and 79% by volume of nitrogen gas. What / which of the following statements is correct?
a) Both gases have a partial pressure of 1.0 atm and a temperature of 293 K.
b) The oxygen gas has a lower temperature than the nitrogen gas.
c) The nitrogen gas has higher partial pressures than the oxygen gas.
d) The nitrogen gas has a temperature of 231 K.
e) The nitrogen gas has a partial pressure of 0.79 atm.
Homework Answers
Answer) Both b) and e) are correct options.
Because, The partial pressure of the gas id directly proportional to the mole fraction of the given gas. and at a constant temperature the amount of gas (in number of moles) is directly proportional to the volume of the gas. Clearly partial pressure of N2 (= 0.79 atm.) is higher than the partial pressure of the O2 gas (=0.21 atm.)
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