1.

What is the number of molecules in 3 cubic metre of a gas at 3atm & 27°C?(a) 2.17*10^-20(b) 6.38*10^-20(c) 3.86*10^-20(d) 4.58*10^-20The question was posed to me in exam.My question comes from Kinetic Theory of an Ideal Gas in division Kinetic Theory of Physics – Class 11

Answer»

The CORRECT choice is (a) 2.17*10^-20

For explanation: USING, PV=NkT we get: N = PV/kT

= (3*3*10^5)/(1.38*10^-23*300)

= 2.17*10^-20.



Discussion

No Comment Found

Related InterviewSolutions