Heat And Thermodynamic

Question 1

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Answer 1

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Question 3

What is the specific heat ?

Answer 3

The specific heat or (Specific Heat Capacity (c)) is defined as the amount of heat (energy) needed to raise the temperature of Ikg of the substance by
(1°C or 1K).

Question 4

What the unit of specific heat?

Answer 4

(J °C^-1g^-1) or (J K^-1g^-1)

Question 5

Specific Heat Capacity: Heat energy required to heat a substance depends
on:

Answer 5

1- The mass of the substance.
2- The temperature rise.
3- The nature of the substance.

Question 6

What is the calorimeter?

Answer 6

A calorimeter is an insulated device used for measuring t amount of heat absorbed or released in a chemical reaction or physical process.

Question 7

What is the latent heat?

Answer 7

The latent heat of fusion (or vaporization of a material is defined as the heat required to convert a solid into a liquid or a liquid into a vapour, without change of temperature.