The container is fitted with a piston so that the volume can change. when the gas is heated at constant pressure, it expands to a volume of 25 l. what is the temperature of the gas in kelvins?

=

where

is initial volume in liters

is initial temperature in kelvins

Explanation:

Let the initial volume be and the initial temperature be  

Now by ideal gas law

Similarly let

be final volume

be the final volume

thus by ideal gas law we again have

Equating i and ii we get

For system at constant pressure the above expression reduces to

Solving for we get

=

where

is initial volume in liters

is initial temperature in kelvins

power out to power in less than 100%