Question

Given below are two statements:
Statement (I): Primary function of compressor in a vapour compression refrigeration system is to raise temperature and pressure of the refrigerant vapour.
Statement (II): Condenser converts the refrigerant vapour to its liquid form.

In light of the above statements, choose the most appropriate answer from the options given below.

• A. Both Statement (I) and Statement (II) are true.
• B. Both Statement (I) and Statement (II) are false.
• C. Statement (I) is true but Statement (II) is false.
• D. Statement (I) is false but Statement (II) is true.

Hint:

Remember the four basic stages of a refrigeration cycle:
1. Compression (Vapor P, T increase)
2. Condensation (Heat rejection, Vapor \(\rightarrow\) Liquid)
3. Expansion (Pressure reduction)
4. Evaporation (Heat absorption, Liquid \(\rightarrow\) Vapor)

Answer 1

The Correct Option is A

Step 1: Check the role of the compressor.
In a vapour compression refrigeration system the compressor draws in low pressure, low temperature refrigerant vapour from the evaporator and compresses it, which raises both its pressure and its temperature, exactly as Statement I says, so Statement I is true.
Step 2: Check the role of the condenser.
The high pressure, high temperature vapour leaving the compressor then passes through the condenser, where it rejects heat to the surroundings and condenses into a high pressure liquid, exactly as Statement II says, so Statement II is also true.
Step 3: Combine.
Both statements correctly describe their respective components of the cycle.
\[ \boxed{Both Statement (I) and Statement (II) are true.} \]