Question

if a fan of closed room is working then what effect will be on the temperature of the room

Answer 1

When the fan operates in a closed room, the motion of the air molecules increases. The increase in the motion ofthe air molecules increases the rate of evaporation of sweat from our body. Due to this evaporation, we feel cool. There is no actual fall inroom temperature. Rather, the room temperature increases slightly due to increase in kinetic energy of the air molecules.Blankets can be used to protect the Ice from MeltingA blanket traps a large amount of air between its fibers. When we cover our body with the blanket, the trapped air prevents the heat transmission from our body to the cold surrounding. As a result, we feel warm. Similarly, when we cover the ice with the blanket, the trapped air of the blanket prevents the heat from outside surrounding to flow into the cold ice. As a result the ice gain no heat and hence remains frozen.

Answer 2

The room temperature will rise.