Question

A sample of hydrogen gas occupies 15 L at 200mm pressure. What would be the volume of this sample at 1 atm pressure if the temperature is kept constant?



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Answer 1

Answer:

Solution:- 

According to Charle's law 

V∝T

V2V1=T2T1

Let the initial volume be V.

∴ Initial volume, (V1)=10L

Final volume, (V2)=?

Initial temperature, (T1)=127℃=(273+127)K=400K

Final temperature, (T2)=−73℃=(227+(−73))K=200K

V210=200400

⇒V2=210=5L

Hence, at 730C the volume of the gas will be 5L.