As the temperature increases, the hotness:

Q. When a hot liquid is mixed with a cold liquid, the temperature of the mixture

(a) first decreases then becomes constant
(b) first increases then becomes constant
(c) continuously increases
(d) is undefined for some time and then becomes nearly constant

Q.

As the angle between two plane mirrors is decreased gradually, the number of images of an object placed between them:

(a) increases gradually

(b) decreases gradually

(c) first increases then decreases

(d) first decreases then increases

Q. As temperature increases, the viscosity of liquids decreases considerably. Will this decrease the resistance of an electrolyte as the temperature increases?

Q. The variation of K and $K_f$ as well as $K_b$ with temperature shows the following effects:
(i) For endothermic reaction K increases and $K_f$ as well as $K_b$ also increases with temperature.
(ii) For endothermic reaction K decreases and $K_f$ as well as $K_b$ also decreases with temperature.
(iii) For exothermic reaction K decreases and $K_f$ as well as $K_b$ both increases with temperature.
(iv) For exothermic reaction K increases and $K_f$ as well as $K_b$ decreases with temperature.
(v) For exothermic reaction K decreases and $K_f$ as well as $K_b$ both decreases with temperature.