PIPE Thermodynamics Pt.6

• heat transfer

• shaft work

• enthalpy change

• closed system work

Power may be expressed in units of ___.

• ft - lb

• kW - hr

• Btu

• Btu/hr

In Stirling process the heat is added during ___.

• isobaric process

• isentropic process

• isothermal process

• heat process

Increasing the pressure has what effect of the boiling point of water?

• no change

• temperature will be lowered

• temperature will be raised

Heat absorbed by water when it changes from liquid to steam at the boiling point is called___.

• sensible heat

• latent heat

• specific heat

• superheat

• saturated

• wet

• superheated

• none of the above

The enthalpy of a substance at a specified state due to its chemical composition.

• enthalpy of reaction

• enthalpy of combustion

• enthalpy of formation

• enthalpy of vaporization

Equilibrium condition exist in all except which of the following?

• in reversible processes

• in processes where driving forces are infinitesimals

• in a steady state flow process

• where nothing can occur without an effect on the system's surrounding

In a closed system (with a moving boundary) which of the following represents work done during an isothermal process?

• W = 0

A substance that is homogeneous in composition and homogeneous and invariable in chemical aggregation.

• pure substance

• simple substance

• vapor

• water