Let 25.2 J of heat be added to a particular ideal gas. As a result, its volume changes from 46.0 to 101.2 cm3 while the pressure remains constant at 1.0 atm. By how much did the internal energy of the gas change?
19.6 J is the answer which i understand how to get the next question is
What is the molar specific heat at constant pressure?
I have tried so many different ways. I dont know if I am doing conversions wrong or not setting it up right. I am pretty sure all my conversions are right.