State Newton's law of cooling. write its expresion in the form of specific heat.
Answers
Answered by
3
Answer:
Newton's law of cooling states that the rate of heat loss of a body is proportional to the difference in temperatures between the body and its surroundings.
Explanation:
Following points are worth noting
• The rate of cooling is high in the beginning but it decreases as time progresses. In figure, it takes 5 min for the temperature to decreases from 90℃ to 70℃ but it takes 7.5 min to decrease it from 70℃ to 50℃.
• The time required for body temperature to reach the surrounding temperature is infinite.
The rate of cooling can be increased by increasing the heat transfer coefficient.
Similar questions