Question

the temperature of a gas filled in a vessel is 273k and the pressure is 1.60 ×10^-3
determine
1. number of molecule in unit volume of the vessel
2.average distance between the molecules

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Answer 1

Answer:

.....can be calculated using calculator use it and find it.......

Answer 2

1. Number of molecule in unit volume of the vessel is :

Given that : Temperature, T = 273K

Pressure, P = 1.60 ×10^-3 and Volume, V = 1 unit

• Using Ideal gas equation,

• PV = nRT

n = PV/RT = 1.60 ×10^-3×1 / 8.314×273K

= 1.60×10^-3 / 2269.722 = 7.049 × 10^-7 molecules

• Hence, no. of molecules is 7.049 × 10^-7

2. For average distance between the molecules we need more detailed information.