KTGEasy
Question
The number of oxygen molecules in a cylinder of volume 1 m3 at a temperature of 27oC and pressure 13.8 Pa is (Boltzmaan′s constant k = 1.38 × 10-23 JK-1) is :
Options
A.6.23 × 1026
B.0.33 × 1028
C.3.3 × 1021
D.None of these
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