Total Force = Pressure x Area
TF =P x A
Work = Force x Distance
One Mechanical HP ?
1 Mechanical HP = 33,000 ft-lb of work/min
Heat added to a substance that changes its state without a change in temperature. hidden heat
Latent heat of fusion?
The heat required to change the state of one pound of a substance from a solid to a liquid at a constant temperature
Heat that changes the temperature of a substance but not its state
Latent Heat of Evaporation
The heat necessary to change 1LB of a substance from a liquid to a gas at a constant temperature.
1lb of water at 212F converted to 1lb of steam at 212F takes 970.3 Btu
The amount of heat required to raise the temp of 1lb of a substance 1deg F
Quantity of Heat?
Quantity of heat = weight of a substance x latent heat
Q=W x Lh
Formulas for test