Heat transfer between two substances is affected by specific heat and the a. chemical composition of the substances.
b. state of matter of the substances at room temperature.
c. thermal equilibrium of the substances.
d. amount of time and area of physical contact between the substances.

Option D

Explanation: Heat transfer can be defined as the amount of heat that is transferred between two objects.

Heat transfer stops when the temperature of the two objects becomes same. Then there is no heat transfer and objects are in equilibrium.

There are many factors on which heat transfer depends. The first factor is specific heat of substance and the second factor is the amount of time for which the two substances are kept in contact with each other.

biology is the study of life. it is the study of living organism.

the cells uses some of the atoms of the glucose molecules to atp molecules. the atoms of the glucose molecules will then be converted into energy which will be eventually stored in atp. the energy produced which are stored in atp are coming from the glucose’s chemical bonds.