What is the number of molecules in 3 cubic metre of a gas at 3atm & 2 – McqOptions

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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*10-20
Answer» B. 6.38*10-20

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