The combined gas law equation is as follows;
PV = nRT
where P - pressure
V - volume, n - number of moles, R - universal gas constant, T - temperature
number of moles are 0.654 mol, Volume - 12.30 L, Pressure is 1.95 atm
R - 8.314 Jmol⁻¹K⁻¹
Pressure is given in atm, we have to convert it to SI units - Nm⁻²
1 atm - 101 325 Nm⁻²
Therefore 1.95 atm = 101 325 x 1.95 = 197 584 Nm⁻²
Substituting these values into the equation,
T = [tex] \frac{PV}{nR} [/tex]
T = [tex] \frac{197584N m^{-2} *0.0123 m^{3} }{0.654mol*8.314J mol^{-1} K^{-1} } [/tex]
T = 2430.28/5.44
= 447 K
