Define: (i) Sensible heat (ii) Latent heat

Define: (i) Sensible heat (ii) Latent heat
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1 Answer

Answer :

i) Sensible Heat: The heat in which change in temperature of a substance can be observed but phase remains unchanged that heat is known as Sensible heat. 

This heat can be sensed by ordinary thermometer, It is given by the equation

image

m is mass

Cp is Specific heat at constant pressure

T1 is Initial Temperature

T2 is Final Temperature


ii) Latent Heat:

It is define as amount of heat required for the change of phase of 1 kg of water at saturated temperature to dry saturated steam at constant pressure .

It is denoted by L , Its value can be directly obtained from steam table

Heat at which solid changes phase to liquid is known as Latent heat of fusion

Heat at which Liquid Changes Phase to vapour is known as Latent heat of vaporization

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