Question

800cm^3 of gas is collected at650mm pressure. At what pressure would the volume of the gas reduce by 40% of its original volume, temperature remaining constant

Answer 1

Given,
     800cm^3 of gas is collected at 650 mm pressure
 By ideal gas law, PV = nRT
 We have to nd out the pressure(P2 ) at which at which volume gets reduced to 40% of its original volume
       As the temperature is constant,
         P1V1 = P2V2       
P1 = 650 mm ; V1 = 800 cm^3        
P2 = ?            ;  V2 = (40/100) x 800 = 320 cm^3
Therefore,        
P2 = (650 x 800) / 320
     =  1625 mm 

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Answer 2

Explanation:

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