MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryGaseous statePrevious Year Questions
By the ideal gas law, the pressure of 0.60 mole NH3 gas in a 3.0 L vessel at 25°C is (AFMC 2009)
A.48.9 atm
B.4.89 atm✓ Correct
C.0.489 atm
D.489 atm
Explanation
Given : n = 0.60 mol, V = 3.0 L T = 25o C = 25 + 273 = 298 K From ideal gas equation, we have 0.60 0.0821 298 p= 4.89 3 nRT pV nRT or atm V x x
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