specific heat of gas.
The specific heat of a substance is defined as the quantity of heat required to raise the temperature of unit mass of the substance through 1 degree.
angle of contact.
It is defined as the angle between the tangent to the liquid surface at the point of contact and solid surface inside the liquid is called as angle of contact The value of angle of contact depends upon (i) Nature of solid and liquid in contact (ii) Cleanliness of the surface in contact (iii) Medium above the free surface of liquid
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