Oxygen is present in a 1 litre vessel at a pressure of 10^(-7) Nm^(-2). Calculate the number of oxygen molecule at 0^(@)C

Oxygen is present in a 1 litre vessel at a pressure of 10^(-7) Nm^(-2)

1.	Oxygen is present in a 1 litre vessel at a pressure of 10^(-7) Nm^(-2). Calculate the number of oxygen molecule at 0^(@)C
Answer» Solution :`PV=nRT,P=10^(-7) Nm^(-2), v=10^(-3) m^(3), T=273K` `n=(PV)/(RT)=(10^(-7)xx10^(-3))/(8314xx273)=2653xx10^(10)`