Foundation Science Primary 4 Energy

What is the temperature of water that has been boiling steadily for five minutes?

A 100°C
B 110°C
C It depends on the heat source
D 90°C
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Worked Solution

Step 1: Pure water boils at a constant temperature of 100°C. Step 2: Even if the heat is increased, the temperature remains at 100°C until all water has turned to steam.

Correct answer: 100°C

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