Question

Distinguish between heat and temperature.
Convert -40.3°C to Kelvin State .​

Answer 1

Heat is the total energy of the motion of the molecules of a substance, whereas temperature refers to the measure of the average energy of the motions of the molecules in the substance. The heat is dependent on factors like the speed of the particles, the size of the particles and the number of particles, etc.

Differences between Heat and Temperature are :

1. The heat of an object is the total energy of all the molecular motion inside that object. Temperature measures the thermal energy or average heat of the molecules in a substance.
2. SI unit of heat is Joule. SI unit of Temperature is Kelvin.
3. Heat is measured in units called Joules and calories. Temperature is measured in units called Fahrenheit, Celsius, and Kelvin.
4. Heat is denoted by the symbol Q and Temperature by the symbol T.
5. Heat has the ability to do work. Temperature can be used to measure the degree of heat.

Convert -40.3 degrees Celcius to Kelvin State.

The formula for Celsius to Kelvin temperature conversion is :

K = C + 273.15

Hence, -40.3 degrees Celcius to Kelvin is K = -40.3 + 273.15 = 232.85 K.