Specific Heat: cp and cv

Earlier, we looked at the specific heat ratio, and we also looked at the variation in specific heat with temperature here and here. Today we’ll look in a little more detail at the properties constant volume and constant pressure specific heat.

Refrigerant 718

News flash! A major spill of refrigerant R718 occurred on the Interstate last night!  The refrigerant soaked the highway and surrounding ground.  Luckily, in a few hours it dried up with no effect other than helping nearby plants and small animals.  Because, of course, refrigerant R718 is the designation for pure water.  Today we’ll consider advantages and disadvantages of using water as a refrigerant.

The Cyclic Relation

The cyclic relation is a result from calculus that is often used in thermodynamics to generate relations between properties.  Today we’ll talk about the cyclic relation and demonstrate it from tabulated steam table properties.