Question

A good refrigerant should have:

• A. High latent heat of vaporization and low freezing point
• B. High operating pressures and low freezing point
• C. High specific volume and high latent heat of vaporization
• D. Low C.O.P. and low freezing point

Hint:

Good refrigerant: high latent heat, low freezing point.
Low operating pressures are preferred.

Answer 1

The Correct Option is A

Step 1: Understanding the Concept:
Refrigerants have specific desirable properties.
These properties affect system efficiency.

Step 2: Key Formula or Approach:
No specific formula.
Need to know the properties of good refrigerants.

Step 3: Detailed Explanation:
A good refrigerant should have:
- High latent heat of vaporization (for efficient heat absorption).
- Low freezing point (to avoid solidification).
High operating pressures are not desirable.
High specific volume is not desirable.
Thus, high latent heat and low freezing point are correct.

Step 4: Final Answer:
A good refrigerant should have high latent heat of vaporization and low freezing point.
Hence, the correct option is (A).