HEAT AND TEMPERATURE || RELATION BETWEEN HEAT AND TEMPERATURE
INTRODUCTION:
- When we touch the heat it's feel 'hot' but water kept in the refrigerator feels 'cold' .
HEAT:
Heat is a form of energy which makes us feel hot or cold. The molecules of a body are in a state of rapid motion and the higher the temperature the faster they move . Heat can be identified with the kinetic energy of the molecules in motion.
- unit of heat is :calorie
TEMPERATURE
- The degree of hotness of a body , compared with some standard of the temperature of body,
- unit of temperature
The SI unit of temperature is kelvin (k). and other common unit of temperature used in degree Celsius (⁰C) and Fahrenheit (⁰F) .
K = C + 273
Where , K = Temperature in kelvin scale
C = Temperature in Celsius scale
Freezing and Boiling points in different temperature
Scale
|
Freezing point
|
Boiling point
|
Centigrade (⁰C)
|
0⁰C
|
100⁰C
|
Fahrenheit (⁰F)
|
32⁰F
|
212⁰F
|
Kelvin (K)
|
273K
|
373K
|
FORMULA
1. C/5 = (F - 32) / 9
2. C/5 = (F - 32 ) / 9 = (K - 273) / 5
