Question

"The rate of loss of heat $-dQ/dt$ of the body is directly proportional to tohe temperature difference $△T=(T_2-T_1)$ of the body and surrounding ".This statements is

• A. law of thermometry
• B. Newton's law of cooling
• C. law of calorimetry
• D. xeroth law

Answer 1

The correct option is B Newton's law of cooling

The rate of loss of heat of a body is represented as:

$-\frac{dQ}{dt}\propto T_2-T_1$

This statement is Newton's law of cooling where the rate of loss of heat is directly proportional to the temperature difference between the body and the surroundings.