100+ UPSC General Knowledge Questions and Answers - 2

Question: 6

Define specific heat capacity of water?

The amount of heat required to raise the temperature of 1 g of water through 1&Deg;C is called specific heat capacity of water. The specific heat capacity of water is 1 cal/g/°C.

Question: 7

Define the term solute?

A substance which dissolves in a liquid is called solute.

Common salt is an example.

Question: 8

Define hydrology?

The science dealing with the study of water present in the earth, their distribution on the surface and underground etc., is known as hydrology.

Question: 9

Why does ice float on water?

The volume of ice at 0&Deg;C is greater than that of water. Hence it has lower density than water at 4°C. Therefore ice floats on water.

Question: 10

Define the term solution?

A uniform mixture of the solute and solvent is known as solution. Eg. Sodium chloride in water.