6. The diagram below shows a simplified floor plan for a small house. As the day goes
on and the Sun begins to set the rooms on the west side of the house grow warmer
than the rooms on the east side, as shown by the temperatures in each room.
24°C
Room 2
27C
Room 1
Room 3
27°C
22°C
The doors between the rooms are open. Which of the following most likely
describes the direction of heat flow through the house and the effect of that heat
flow on temperature?
a. From Room 3 to Room 1 and Room 2 until all the rooms are about 25°C
b. From Room 2 to Room 2 to Room 3 until all the rooms are about 27°C
c. From Room 1 to Rooms 2 and 3 until all rooms are about 27.C
d. From Room 1 to Rooms 2 and 3 until all rooms are about 25°C