The inside of a house is at 20°C on an early morning when the temperature outside is 15°C.The next morning the inside temperature is the same,but the outside temperature is now 5°C.How much does the energy per unit time lost by conduction through the walls,windows,doors,etc. ,change for the house from the first morning to the second one.
A) Since the inside temperature stays the same,the loss is the same both days.
B) The loss reduces to 1/3.
C) The loss triples.
D) The loss increases by 5/278 since we need to use the Kelvin scale for this calculation.

Question

Quizplus · Accepted Answer

The energy loss by conduction is proportional to the temperature difference between inside and outside. On the first morning, the difference is 5°C, and on the second morning, it is 15°C. Therefore, the energy loss triples.

The Inside of a House Is at 20°C on an Early