What is the temperature (in °C) of a closed, rigid vessel, calibrated to read 1.00 atm at STP, if the pressure reads 1.55 atm?

Answer 1

P1 = initial pressure in atm = 1.00 atm

T1 = initial temperature in K = 273K

P2 = final pressure in atm = 1.55 atm

T2 = final temperature in K = ?

P1/T1 = P2/T2

1.00 atm / 273 K = 1.55 atm / T2

T2 = 423 K

423 K - 273 = 150ºC