The volume : V = 45.22 L
Further explanation
Given
Moles = n = 2
Pressure = P = 780 torr = 1,02632 atm
Temperature = T = 10 + 273 = 283 K
Required
Volume
Solution
Ideal gas law : PV = nRT
where
P = pressure, atm
V = volume, liter
n = number of moles
R = gas constant = 0.08206 L.atm / mol K
T = temperature, Kelvin
Input the value :
V = (nRT)/P
V = (2 x 0.082 x 283)/1,02632
V = 45.22 L