A cooling curve is plotted between the temperature of a hot body and time. Which of the following is not true for the cooling curve?

Question

A cooling curve is plotted between the temperature of a hot body and time. Which of the following is not true for the cooling curve? (A) Cooling is faster from a calorimeter having a larger surface area than a smaller one. (B) Cooling is faster from a calorimeter painted black from outside than that from a polished surfaced calorimeter. (C) Cooling is faster from a copper calorimeter than from a steel calorimeter. (D) The rate of cooling remains same throughout the experiment. Hence the graph is a straight line.

Tardigrade Admin · Accepted Answer

The rate of cooling is faster at the beginning and then decreases and becomes constant.

Q. A cooling curve is plotted between the temperature of a hot body and time. Which of the following is not true for the cooling curve?

Cooling is faster from a calorimeter having a larger surface area than a smaller one.

Cooling is faster from a calorimeter painted black from outside than that from a polished surfaced calorimeter.

Cooling is faster from a copper calorimeter than from a steel calorimeter.

The rate of cooling remains same throughout the experiment. Hence the graph is a straight line.

The rate of cooling is faster at the beginning and then decreases and becomes constant.