Asample of an ideal gas (3.00 l) in a closed container at 25^\circ c25∘c and 76.0 torr is heated to 300^\circ c300∘c. the pressure of the gas at this temperature is torr.

Answer : The pressure of the gas at 300 °C is, 146 torr

Explanation :

Gay-Lussac's Law : It is defined as the pressure of the gas is directly proportional to the temperature of the gas at constant volume and number of moles.

or,

where,

= initial pressure of gas =  76.0 torr

= final pressure of gas = ?

= initial temperature of gas =

= final temperature of gas =

Now put all the given values in the above equation, we get:

Therefore, the pressure of the gas at 300 °C is, 146 torr