❄️ How Does an AC or Refrigerator Work?

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🧊 Big idea first

An AC (Air Conditioner) and a Refrigerator do the same job:

👉 They move heat from inside to outside
They don’t make cold — they remove heat!

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🧠 Easy way to imagine

Cold is not added
Heat is taken away

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🔁 Main parts (simple names)

Both ACs and refrigerators have:

• Cool liquid (refrigerant) 🧪
• Compressor 🔄
• Coils (inside & outside)
• Fan

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🪜 How it works (step by step)

1️⃣ Heat is absorbed (cooling inside)

• Inside the fridge or room, the refrigerant is cold
• It absorbs heat from food or air
• This makes the inside feel cool

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2️⃣ Compressor squeezes the gas

• The refrigerant turns into gas
• The compressor squeezes it
• This makes it hot

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3️⃣ Heat is released (outside)

• The hot gas goes to the outside coils
• Heat is released into the air 🌬️
• That’s why the back of a fridge feels warm!

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4️⃣ Back to liquid → repeat!

• The refrigerant cools down
• Turns back into liquid
• Goes inside again to absorb more heat

🔁 This cycle repeats again and again

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🧠 Why does a fridge door feel cold?

• Heat from your hand moves into the fridge
• The fridge takes that heat away!

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🌬️ AC vs Refrigerator (simple difference)

AC	Refrigerator
Cools a room	Cools food
Heat goes outside	Heat goes behind fridge
Uses same idea	Uses same idea

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🧠 Easy to remember

AC & Fridge = Heat movers, not cold makers

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⭐ Fun facts for kids

• Fridges shouldn’t be kept open long
• ACs work better when doors are closed
• Same science is used in ice cream machines 🍦

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