In the house to rooms are separated by a wall made of brick 4 inch thick Room A is held a constant temperature a) At what rate is his transferred from room into room key while warranty is at the indicated temperature? b) find the change in entropy involved in bringing a room B to the temperature of the room A c) find a total change in entropy for the two rooms due to this process
In the house to rooms are separated by a wall made of brick 4 inch thick Room A is held a constant temperature
a) At what rate is his transferred from room into room key while warranty is at the indicated temperature?
b) find the change in entropy involved in bringing a room B to the temperature of the room A
c) find a total change in entropy for the two rooms due to this process
Temperature of room A
Area of wall in room A
Temperature of room B
Volume of room B
Density of air
Specific heat of air
Thermal conductivity of brick
Thickness of the brick wall
As the temperature of room A is greater than temperature of room B, heat will transfer from room A to room B till they reach equilibrium.
Therefore, this rate of heat transfer is given by the equation;
Substituting the values;
Thus, the rate of heat transfer from room A to room B is 5.42 kW.
To bring room B to the temperature of room A, the change in heat energy will be;
Substituting the values;
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