MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryGaseous statePrevious Year Questions
In a flask of 'V' litres, 0.2 mole of O2, 0.4 mole of N2, 0.1 mole of NH3 and 0.3 mole of He gases are present at 27°C. If total pressure exerted by these non-reacting gases is 1 atm, the partial pressure exerted by N2 gas is (EAMCET 2008)
A.0.4 atm✓ Correct
B.0.3 atm
C.0.2 atm
D.0.1 atm
Explanation
Total number of moles = 0.2 + 0.4 + 0.1 + 0.3 = 1.0 Partial pressure of nitrogen = total pressure × mole fraction of nitrogen = moles of nitrogen 0.4 1 atm × 1 0.4 total number of moles 1 atm x
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