1) The equations of Cp as a function of T, are valid, in: a) From the solid state to the gaseous state. b) In each of the states of matter and at the same temperature. c) Only in the phase change regions. d) In each of the states of matter and at various temperature intervals.

2) Amount of heat that is given off when changing, one gram of a body, from its physical state from vapor to liquid: a) heat of fusion b) heat of vaporization c) Heat of sublimation d) Heat of condensation

3) What is the enthalpy of 32 lb/min of steam at 30 psia and 280F?