Question

A zeotropes are mixture of

A.O (a) primary and secondary refrigerant

CO (c) CFCS and HFCs

B.O (b) Ammonia and water

D.O (d) HCFCs and HFCs​

Answer 1

Answer:

(a) primary and secondary liquids...

Answer 2

A zeotropes are mixture of (a) primary and secondary refrigerant.

Explanation:

Primary refrigerants:

• These types of refrigerants are liquids.
• Primary refrigerants are used as direct working fluids.

For example, absorption and VCR-based systems.  

• When we use the suction systems or compression, these liquids provide refrigeration subject to phase conversion processes in the evaporator.

Secondary refrigerants:  

• These types of refrigerants are the type of liquids used to transport thermal energy from one place to another.  

• It is also known as brine or antifreeze.  

Zeotropes and Azeotropes:

• Mix more or two refrigerants to reach the desired properties.  
• It is known as zeotropes and azeotropes.

Azeotropic refrigerants:

• This is a standard mixture of more or two refrigerants whose liquid and vapor states retain homogeneous compounds overs the wide ranges of the temperature.

Zeotrophic refrigerants:

• Zeotropic compound, the mixture in liquid state differs from the vapor state. 
• Therefore it does not boil at a constant temperature.