Question

A gas 'X' at -33°C is heated to 127°C at constant pressure. Calculate the percentage increase
in the volume of the gas.​

Answer 1

Explanation:

If it converts into Kelvin scale..

-33+273=240°K

127+273=400°K

Increasing percentage=(160/240)×100

=200/3

=66 2/3%

Answer 2

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Explanation:

Solution

Initially,

Volume = V

T1 = - 33°C = 240k

Finally,

Volume = x

T2 = 127°C = 400 K

Using Charles law,

=> V1 / T1 = V2 / T2

=> V / 240 = x / 400

=> x = 400 V / 240 = 5V/3

Increasing volume = 5V/3 - V = 2V/3

% =( 2V/3) / V ×100 = 200/3 = 66.67 %

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