Question

The mass of 350cm cube of a diatomic gas at 273 k at 2 atmosphere pressure is one gram Calculate the mass of one atom of gas?

Answer 1

Explanation:

n=

RT

PV

=

0.082×273

2×0.35

≈0.031mol

0.031 mol weight 1g

0.031×6022×10

23

atoms= 1g

=

0.031×6.022

1

×10

−23

=5.3×10

−23

g

Answer 2

Explanation:

ANSWER

n=RTPV

=0.082×2732×0.35

≈0.031mol

0.031 mol weight           1g

0.031×6022×1023atoms=          1g

           =0.031×6.0221×10−23

           =5.3×10−23g