Calories and Heat

Chapter 6. Heat and Energy

By Lalisa Monaban

Heat and Temperature

What is heat?

Heat is the form of energy that is transferred between two bodies at two different temperatures when kept in contact.

S.I. unit - - - Joule (J)

Other units are calorie and kilocalorie, where:

1 kcal = 1000 cal​

Heat and Temperature

What is Temperature?

Temperature is a quantity which indicates the thermal state of a body.

It determines the direction of flow of heat when two bodies at different temperatures are placed in contact.​

Multiple Choice

S.I. unit of heat is ______

• erg

• Joule (J)

• kilocalorie (kcal)

• calorie (cal)

Multiple Choice

S.I. unit of temperature is _____

• degree celsius

• degree kelvin

• kelvin