Final answer:
The change in internal energy for the overall process is 0 J.
Step-by-step explanation:
The change in internal energy of a system can be calculated using the equation:
ΔU = Q - W
Where ΔU is the change in internal energy, Q is the heat transferred to or from the system, and W is the work done on or by the system.
In this case, for the overall process, we have:
ΔU = Q1 + Q2 - W1 - W2
Substituting the given values:
ΔU = 222 J + 123 J - 150 J - 195 J
ΔU = 0 J
Therefore, the change in internal energy for the overall process is 0 J. This means that the heat transferred to the system is equal to the work done on the system.