wunder beta

📘 A refrigerator moves heat outward

A refrigerator moves heat outward

lessons

~10 min

to learn

🔬 Science

subject

Adults

level

Start the course →

What you’ll learn

The problem
Evaporator
Compressor
Condenser
Expansion
Insulation
Thermostat
Freezer
Efficiency
The loop

Questions this course answers

Where does refrigerant absorb heat?

Low-pressure refrigerant evaporates in the evaporator and absorbs cabinet heat.

What does the compressor do?

Compression prepares vapor to reject heat outdoors.

Why are condenser coils warm?

The condenser rejects the cycle's total heat load to the room.

What does the expansion device lower?

The pressure drop enables cold evaporation in the evaporator.

Why does frost harm airflow?

Frost adds thermal resistance and obstructs air movement.

Grounded in trusted sources

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Every Wunder lesson is built from real, reputable sources — never invented.

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