HARDMCQ SINGLEIChO (Chemistry Olympiad)Physical ChemistryGaseous stateAchiever Section

For NH₃ gas Z < 1. So the volume occupied by one mole of NH₃ (Vm) at STP is

A.Vm = 22.4 L

B.Vm >22.4 L

C.Vm< 22.4 L✓ Correct

D.Vm = 0

Explanation

The compressibility factor (Z) is given by, PV Z RT Also, real ideal V Z V For 3 NH , 1 real ideal Z V V >> So, the volume of gas will be less than 22.4L Thus, the correct option is (c).

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