A heat engine with a thermal efficiency of 45% produces 880 kJ of work. Heat transfer to the engine is from a reservoir at a temperature of 550 K, and the heat transfer from the

engine to the surrounding air is at 300 K.
a) Determine the heat transfer to and from the heat engine.
b) Find the maximum efficiency of the heat engine.

answer:

it thinks that you spelled something wrong.

explanation:

One of the benefits of working with chlorinated polyvinyl chloride (CPVC) pipe is that it can be cut with a variety of different tools that don’t require any electricity or heat. However, different cutting methods are preferred over others, depending on the application.

When cutting CPVC pipe, it is important to make a square, flat cut. An uneven cut limits the bonding area and weakens the fitting.

To help you make the best possible cut, we’ve put together the following dos and don’ts when cutting CPVC pipe in different situations.