a sample of argon at 300. °c and 50.0 atm pressure is cooled in the same container to a temperature of 0.  °c.  what is the new pressure, if the volume and amount of gas do not change?

105 atm

Explanation:

Gay-Lussac's Law: This law states that pressure is directly proportional to the temperature of the gas at constant volume and number of moles.

    (At constant volume and number of moles)

where,

= initial pressure of gas = 50 atm

= final pressure of gas  = ?

= initial temperature of gas  =

= final temperature of gas =

Therefore, the new pressure of the gas will be 105 atm.