Question

A balloon filled with helium has a volume of 30.0 L at a pressure of 75 kPa and a temperature of 35.0°C. What will the volume of the balloon be if the temperature is increased to 67.0°C and the pressure remains constant?

Answer 1

IDEAL GAS EQUATION:

PV=nRT

Here, P is pressure

         V is volume

        n is number of mole

         R is gas constant ( 8.314 JK-1mol-1)

       T is temperature in kelvin

Ideal gas equation at constant n and P :

Where,

                   T1 and V1 are the initial temperature and volume respectively

                    T2 and V2 are the final temperature and volume respectively

T1 =(273+35)K=308K and V1 =30.0L

    T2 =(273+67)K=340K and V2 =?