Figure 6-9. - Pressure temperature chart.

An increase in pressure on a confined vapor also causes the vapor to change to a liquid. This fact is shown in figure 6-13. When the compressor increases the pressure on the vapor, the condensing vapor changes to a liquid and gives up heat to the cooler surrounding objects and atmosphere.

These conditions exist when the vaporized refrigerant is compressed by the compressor of a refrigeration system and forced into the condenser.

The condenser removes the superheat, latent heat of vaporization, and, in some cases, sensible heat from the refrigerant.

Q1. When two substances of different temperatures are brought in contact with each other, heat will flow from the colder substance to the warmer substance. True/False.

Q2. What is specific heat?