At 100 K and 0.1 atmospheric pressure the volume of helium gas is 10 litres If the volume and pressure are doubled its temperature will change to

Dear pallavi

Use

 P1V1/T1 = P2 V2/T2

P1V1/T1   = 2P1 *2V1 /T2

T2=4T1

    =4 * 100

   =400 K

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