Question

48. If a fan of a closed room is working then
temperature of the room will:
(a) increase
(b) decrease
(c) remain unchanged
(d) decrease in summer but increase in winter​

Answer 1

Answer:

(c) remain unchanged

Explanation:

IF THE ROOM IS TOTALLY CLOSED THEN NO AIR WILL PASS, SO TEMPERATURE WOULD BE UNCHANGED

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Answer 2

Answer:d) Higher temperatures increase the energy and therefore the movement of the molecules, increasing the rate of diffusion. Lower temperatures decrease the energy of the molecules, thus decreasing the rate of diffusion. Solvent density: As the density of a solvent increases, the rate of diffusion decreases.

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Explanation: