Question

Write true or false for each statement :

(a) The temperature of a substance remains unaffected during its change of state.

(b) Ice melts at ${100}^{\circ }C.$

(c) Water at ${100}^{\circ }C.$ has more heat than steam at ${100}^{\circ }C.$

(d) Evaporation of a liquid causes cooling.

(e) Water evaporates only at ${100}^{\circ }C.$

(f) Boiling takes place over the entire mass of the liquid.

(g) Evaporation takes place over the entire mass of the liqid.

(h) The process of a gas converting directly into solid is called vaporization.

(i) At high altitudes, water boils above ${100}^{\circ }C.$

(j) The melting point of ice is $0^{\circ }C$

Answer 1

(a) True

(b) False

(c) False

(d) True

(e) False

(f) True

(g) False

(h) True

(i) False

(j) True