Chemical Engineering Thermodynamics
The following heat engine produces power of 100000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is

320, 000 kW
200, 000 kW
160, 000 kW
100, 000 kW

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Chemical Engineering Thermodynamics
It is desired to bring about a certain change in the state of a system by performing work on the system under adiabatic conditions.

The amount of work needed is path dependent
More information is needed to conclude anything about the path dependence or otherwise of the work needed
Work alone can not bring out such a change of state
The amount of work needed is independent of path

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