SCIENCE
PHYSICAL SCIENCES
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -It takes more heat energy to raise the temperature of water by one degree than to raise the temperature of steam by the same amount. When a refrigerant condenses it gives up energy as heat to its surroundings. When a refrigerant evaporates it adds energy as heat to its surroundings.
Detailed explanation-2: -The refrigerant vapour enters the evaporator where it absorbs heat from the space being cooled, causing the refrigerant to boil. As it continues through the evaporator coil the vapour is superheated turning the refrigerant to gas before it enters the compressor and starts the cycle over again.
Detailed explanation-3: -Compressor Types A compressor is a component of the refrigeration circuit which acts as a pump to circulate refrigerant and adds pressure and heat.
Detailed explanation-4: -The refrigerant moves into a saturated state (liquid and vapor at the same time) once it is de-superheated. At this point, further heat is removed, and the refrigerant becomes a sub-cooled liquid as its temperature is now below its boiling or saturation point.
Detailed explanation-5: -What happens to refrigerant heat in the condenser? The refrigerant heat is absorbed into the coil and through forced convection push to the outside air. 18. The metering device.