Heat Processes (0312)

Heat Processes

The thermometric cooler convert temperature difference to electricity

Supplied power,the thermometric cooler will make different temperature

The relationship between Cv and R. The ratio is 3/2.

The relationship between Cp and R. The ratio is 5/2.

Recall that P,V, and T are not constant. Therefore, we have to use product and quotient rule to take derivatives.

We derived the formula describing the relationship between P and V, 

 P^(3/5)*V= constant at the end. 

Another derivation in adiabatic process.

Adiabatic process

Using the derived formula to find the work done.

We were introduced to how the pistons work in an engine. There are 4 steps to completing 1 engine cycle. Intake, Compression, Power and Exhaust.

A simulator of engine

In order to make enginer more powerful (not more efficient), we need more revolution of the piston moving, we need bigger volume of combustion chamber, and we need to maximize the stretch of the pressure to push all the gas molecule out.