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A gas is contained in a thick walled balloon. When the pressure change from __ torr to 777 torr, the volume changes from 2.58 L to 1.53 L and the temperature changes from 368 K to 495 K.

Respuesta :

Ishankahps

Let's assume that the gas is an ideal gas.

 

Then we can use combined gas law,

 PV/T = k (constant)

 

Where, P is the pressure of the gas, V is volume of the gas and T is the temperature of the gas in Kelvin.

 

For two situations, we can use that as,

P₁V₁/T₁= P₂V₂/T₂

 

P₁ = ?

V₁ =  2.58 L

T₁ = 368 K

P₂ = 777 torr

V₂ = 1.53 L

T₂ = 495 K

 

By applying the formula,

   P₁ x 2.58 L / 368 K = 777 torr x 1.53 L / 495 K

                             P₁ = 342.6 torr


Hence, the answer is 342.6 torr.

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