Solve the below:
Q: A large slab of concrete, 5 × 8 × 0.3 m, is used as a thermal storage mass in a solar-heated house. If the slab cools overnight from 23°C to 18°C in an 18°C house, what is the net entropy change associated with this process? You must solve the given problem in a steps.You need to include all the units which are needed to complete the problem.Your steps and calculation should be clear and understandable.