Question

How would you establish experimentally water is a bad conductor of heat?

Answer 1

Aim: To prove water is a bad conductor of heat.

Apparatus required: Test tube, pure water, piece of wax, wire, and furnace.

Procedure:

1. We take a test tube filled with pure water.
2. Wrap the test tube with a wire.
3. Put a piece of wax in pure water.
4. Hold the test tube in a tilted or inclined position and heat it using a furnace.

Observation: We will observe that top of the water or upper part of water the starts boiling but the wax will not melt at all.

Conclusion: Water is a bad conductor of heat so it starts boiling but wax does not.