What is the number of molecules in 3 cubic metre of a gas at 3atm & 27 – 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<sup>-20</sup>
B.	6.38*10<sup>-20</sup>
C.	3.86*10<sup>-20</sup>
D.	4.58*10<sup>-20</sup>
Answer» B. 6.38*10<sup>-20</sup>

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