Difference Between Heat and Temperature

The difference between heat and temperature is described in tabular form as follows:

Heat

Temperature

Heat is a form of energy that flows from one system to another due to temperature difference between them.

Temperature is a measure of hotness or coldness of a body or system.

SI unit of heat is Joule.

SI unit of Temperature is Kelvin.

Other units of heat include calorie, BTU, etc.

Other units of temperature are Celsius, Fahrenheit, etc.

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Unit of Heat – SI Unit

Unit of Heat is Joule. It is named after the scientist James Prescott Joule in recognition of his contributions to research in thermal sciences. Heat is a form of energy which deals with the body’s temperature. Heat energy flows from one body to another due to their temperature difference. Heat is also measured in calories or kilocalories.

In this article, we will learn the definition of heat, its unit in various systems, conversion between different heat units, and some practice problems based on it.

Table of Content

  • What is Unit of Heat?
  • SI Unit of Heat
  • Unit of Heat in CGS System
  • Difference Between Heat and Temperature

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Definition of Heat

Heat can be defined as follows,...

What is Unit of Heat?

Unit of heat is a measure of the amount of thermal energy transferred between two substances due to a temperature difference. It quantifies the amount of heat energy involved in a process. Thus, it is a standard amount of heat chosen for measurement in relation to this quantity....

SI Unit of Heat

S.I. Unit of Heat is Joule (J). It is named after the scientist James Prescout Joule. The base unit of heat is same as that of energy and work, i.e. kgms-2....

Unit of Heat in CGS System

C.G.S. system of units stands for Centimeters (length), Grams (mass), and Seconds (time). In CGS system, the unit of heat is Calorie abbreviated as Cal....

Unit of Heat in Other Systems

Unit is a standard measurement of any physical quantity that is used to express the size or magnitude of any physical quantity. There are different units chosen for the measurement of same physical quantity for its convenient representation in terms of magnitude. The unit of heat in different systems is mentioned below:...

Conversion Between Unit of Heat

Unit of heat can be converted from one system to another using the conversion factors given in the following table:...

Difference Between Heat and Temperature

The difference between heat and temperature is described in tabular form as follows:...

Solved Examples on Unit of Heat

Example 1: Calculate the amount of heat required to raise temperature of 100 grams of water by 20 degree Kelvin. Given that, specific heat of water = 4.2 J/kg-K....

Practice Problems on Heat Units

Problem 1: Convert 100 J of heat into calories....

Unit of Heat FAQs

What is SI unit of heat?...