Home
Class 11
PHYSICS
Is the rate of cooling the same thing as...

Is the rate of cooling the same thing as the rate of loss of heat? Explain.

Text Solution

Verified by Experts

No, the rate of cooling is the fall of temperature per second, whereas the rate of loss of heat is the amount of heat lost per second.
Promotional Banner

Topper's Solved these Questions

  • THERMAL PROPERTIES OF MATTER

    MODERN PUBLICATION|Exercise COMPETITION FILE (EXEMPLAR PROBLEM SUBJECTIVE QUESTION (SHORT ANSWER TYPE QUESTION)|4 Videos

  • SYSTEMS OF PARTICLES AND ROTATIONAL MOTION

    MODERN PUBLICATION|Exercise Chapter Practice Test (for Board Examination)|16 Videos

  • UNITS AND MEASUREMENT

    MODERN PUBLICATION|Exercise CHAPTER PRACTICE TEST|15 Videos

Similar Questions

Explore conceptually related problems

The rate of cooling of a body is .

Two bodies have thermal capacities in the ration 3:4 and the rates of loss of heat in the ratio "3:5" .Their rates of cooling will be in the ratio of

The bodies have thermal capacities in the ratio 3:4 and the rates of loss of heat in the ratio 3:5 Their rates of cooling will be in the ratio of .

Assertion : If the temperature of a star is doubled then the rate loss of heat from it becomes 16 times . Reason : Specific heat varies with temperature.

A sphere and a cube of equal volumes both are made of iron and have similar surface. If both are cool in identical surrounding, at a lower temperature, then the ratio of the initial rates of loss of heat is

The rate of cooling of a body depends on –

Assertion: According to Newton's law of cooling, the rate of loss of heat, -dQ//dt of the body is directly proportional to the difference of temperature. Reason :This law holds for all type of temperature differences.

A body cools in a surrounding of constant temperature 30^(@)C . Its heat capacity is 2J//^(@)C . Initial temperature of the body is 40^(@)C . Assume Newton's law of cooling is valid. The body cools to 36^(@)C in 10 minutes. When the body temperature has reached 36^(@)C . it is heated again so that it reaches to 40^(@)C in 10 minutes. Assume that the rate of loss of heat at 38^(@)C is the average rate of loss for the given time . The total heat required from a heater by the body is :

A hot object loses heat to its surroundings in the form of heat radiation. The rate of loss of heat depends on