Question

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plan of a bedroom and part of the main room of a house Other rooms are not
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main room 22°C
Co
outside of
house 32 °C
Fode
Ph
door
bedroom
18°C
window
Fig. 2.1
The temperatures of the main room, the bedroom and the outside of the house are shown on
Fig. 21
Fig. 22 shows all the thermal energy (heat) inputs to the bedroom in one hour.
thermal energy input to bedroom
through door and walls from main room
50 000 J
2 000 000J
through walls from outside of house
1 000 000
through window
250 000J
from person sleeping in bedroom​

Answer 1

Answer:

which varies slightly with temperature

Explanation:

Linear thermal expansion is ΔL = αLΔT, where ΔL is the change in length L, ΔT is the change in temperature, and α is the coefficient of linear expansion, which varies slightly with temperature. The change in area due to thermal expansion is ΔA = 2αAΔT, where ΔA is the change in area.