Question

How can you experimentally prove that water is a bad conductor of heat?how is it possible to heat water easily while cooking

Answer 1

The experiment that can be used to show that water is a poor conductor of heat is as follows;

Take a hard glass test tube and into it drop a tiny ice cube wrapped in a wire-gauze. Then fill the the test tube with ice cold water to 3/4. heat the test tube near its mouth. It is noted that water starts boiling near the top but the ice does not melt. This experiment shows that water is a poor conductor of heat.

To heat water easily one needs to cover the water with the lid while being heated to minimize loss of heat carried by vapour.

Answer 2

Explanation:

• half fill a test tube with cold water.
• wrap a piece of ice in wire gauze and drop it in the tube.
• it will sink to the bottom.
• now heat the top end of the test tube .
• the water soon begins to cool at the top but ise below has still not fully Melted. ....