Question

A given mass of a gas occupied 143 cm cube at 27 degree Celsius and 700 mm HG pressure .What will be its volume at 300k and 280 mm HG pressure.

Answer 1

Answer:357.5 cm cube

Explanation: use the formula pv/t= pv/t use the following picture hope this helps

Answer 2

Answer:

357.5 cm^3

Explanation:

P1=700 mm hg            P2= 280 mm hg

V1=143 cm^3                V2=?

T1= 27 degree C          T2= 300 K

   = (273 + 27) K

   = 300 K

Since temperature remains constant, Boyle's law is applied here.

P1*V1=P2*V2

=> 700*143 = 280*V2

=> V2=700*143/280

=> V2= 715/2

=> V2= 357.5 cm^3 (Ans)

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Hope this helps!