Beryl states that insulation with the smallest possible thermal conductivity is best to keep a house warm in winter, but worst for keeping a house cool in summer. Sapphire insists the reverse is true: low thermal conductivity is good in the summer, but bad in the winter. Which one, if either is correct?
A) Beryl, because low thermal conductivity results in low heat transfer.
B) Beryl, because low thermal conductivity results in high heat transfer.
C) Sapphire, because low thermal conductivity results in low heat transfer.
D) Sapphire, because low thermal conductivity results in high heat transfer.
E) Neither, because low heat transfer is desirable both in summer and in winter.

Question

Quizplus · Accepted Answer

Low thermal conductivity means that the material does not allow heat to pass through it easily, which is beneficial for insulating a house in both winter and summer. In winter, it keeps the heat inside, and in summer, it keeps the heat outside.

Beryl States That Insulation with the Smallest Possible Thermal Conductivity