Molecular mass.
Answer:-
Molecular mass is the average relative mass of a molecule of an element or a chemical compound as compared to the mass of a carbon atom (¹²C) taken as 12 on the atomic mass unit scale.
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
Comments
Post a Comment