Class 11 Physics simulations · Thermal Properties of Matter

Mixing hot and cold water

Watch two water samples approach their equilibrium temperature.

Open the simulation

What to notice

With no heat loss, heat released by hot water equals heat absorbed by cold water.

Key relation

Tf = (m₁T₁ + m₂T₂)/(m₁+m₂)

Try this

Increase the mass of cold water.

What you can change

• Hot water temperature: 50 to 95 °C
• Cold water temperature: 5 to 40 °C
• Cold / hot mass ratio: 0.5 to 3 ×

More in Thermal Properties of Matter

• Bimetallic strip
• Thermal expansion
• Steady heat conduction
• Heating curve: ice to steam
• Newton’s law of cooling
• Heating with specific heat
• Net thermal radiation
• Anomalous expansion of water

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