Question

What is the most commonly used refrigerant in heat pumps?
A. Chlorofluorohydrocarbons
B. Fluorine gas
C. Hydrogen gas
D. Carbon gas

Answer 1

Hint:The heat pump is considered as the thermodynamic process. This device can transfer heat. The transfer of the energy in the form of the heat from the source of the heat.
Basically, heat is absorbed from the hot region and then released to the colder region.

Complete step-by-step solution:
Heat pump is described as a mechanical device which is used to extract heat from the colder system and transfer it to the hotter system.
The heat pump is classified in two types: Single slit heat pump and multi split heat pump.
These are used in refrigerators.
The heat pump in the refrigerator is commonly R410A. This produces the charge of 1 kg to 5 kg. This heat pump is a single slit heat pump.
A multi-split heat pump is also available in the refrigerator. The commonly used multi split pump uses Chlorofluorohydrocarbons.
The Chlorofluorohydrocarbon can overcome global warming 1000 times as compared to the carbon dioxide. So, it is preferred.
So, from the above explanation it is observed that the most commonly used as refrigerant in heat pumps is chlorofluorohydrocarbons.
Hence, the option A is correct.

Note:- There are other forms of the heat pumps. The common example of the heat pump is the carbon dioxide and ammonia heat pump.
This heat pump has lower global warming as compared to Chlorofluorohydrocarbons heat pump. Also, the coefficient of performance is much higher. But it is only observed at high temperatures. This heat pump has potential BREEAM points.