To determine the energy transferred to or from the system by heat, we can use the first law of thermodynamics, which states that the change in internal energy of a system is equal to the heat added to the system minus the work done by the system:
ΔU = Q - W
where: ΔU is the change in internal energy Q is the heat transferred to the system W is the work done by the system
In this case, we are given that the internal energy increases by 480 J (ΔU = 480 J) and 220 J of work is done by the system (W = 220 J). Plugging these values into the equation, we can solve for Q:
480 J = Q - 220 J
Rearranging the equation, we find:
Q = ΔU + W = 480 J + 220 J = 700 J
Therefore, the energy transferred to or from the system by heat is 700 J.