MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryGaseous stateDalton's law of partial pressure
A gaseous mixture is the mixture of 2 moles of A and 3 moles of B. Total pressure of the mixture is 5 atm. What is the partial pressure of A and B respectively?
A.2 atm and 4 atm
B.2 atm and 3 atm✓ Correct
C.3 atm and 2 atm
D.6 atm and 2 atm
Explanation
mole fraction of 2 2 A 0.4 2 3 5 mole fraction of 3 3 B 0.6 2 3 5 Partial pressure of gas A 0.4 5 atm 2 atm x Partial pressure of gas B 0.6 5 atm 3 atm x
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