If a beaker of water is placed under a broiler so that the heating coil is above the beaker.It is observed that only the surface layer boils.The water at the bottom of the beaker remains close to the initial temperature of the water.Which of the following statements is the most reasonable conclusion to be drawn from these observations?
A)Water is a poor conductor of heat.
B)The sample must contain impurities.
C)Water is easily heated by radiation.
D)Water exhibits anomalous thermal behavior.
E)The molecular motion in the sample is not random.

Question

Quizplus · Accepted Answer

Water is a poor conductor of heat, which means that heat energy is not transferred efficiently throughout the water. As a result, only the surface layer is heated by radiation from the broiler, while the water at the bottom of the beaker remains close to its initial temperature. This observation is consistent with the fact that water has a low thermal conductivity compared to other substances, and therefore, it is not surprising that heat is not evenly distributed throughout the water sample.

If a Beaker of Water Is Placed Under a Broiler