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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?

Options

  1. ACooling is faster from a calorimeter having a larger surface area than a smaller one.
  2. BCooling is faster from a calorimeter painted black from outside than that from a polished surfaced calorimeter
  3. CCooling is faster from a copper calorimeter than from a steel calorimeter.
  4. DThe rate of cooling remains same throughout the experiment. Hence the graph is a straight line.

Correct answer

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

Step-by-step solution

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

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