When 229 J of heat is supplied to 3.00 mol of Ar (g), the temperature of the sample increases by 2.55 K. a. Show that C_v, m = C_v, m + R for an ideal gas using the equations below. Delta U = C_ middot Delta T Delta H = C_ - Delta T Delta H = Delta U _ n-R-Delta T b. Calculate the molar heat capacities at constant volume and constant pressure, C_v, m and C_p, m, respectively.