2.0 1.6 - 1.2 0.8 0.4 8 10 12 14 16 time/hr The image above is a neat copy of a photo of an electricity meter for a domestic solar array. The display shows the energy we sold to the electricity company on a winter's day. Between 7 a.m. and 5 p.m., how many kilowatt hours did this household sell to the electricity company? E = _ kW.hrs. Give your answer to two significant figures. Each box is 100 W high and 1 hr wide. power/kW
Energy transfer
The flow of energy from one region to another region is referred to as energy transfer. Since energy is quantitative; it must be transferred to a body or a material to work or to heat the system.
Molar Specific Heat
Heat capacity is the amount of heat energy absorbed or released by a chemical substance per the change in temperature of that substance. The change in heat is also called enthalpy. The SI unit of heat capacity is Joules per Kelvin, which is (J K-1)
Thermal Properties of Matter
Thermal energy is described as one of the form of heat energy which flows from one body of higher temperature to the other with the lower temperature when these two bodies are placed in contact to each other. Heat is described as the form of energy which is transferred between the two systems or in between the systems and their surrounding by the virtue of difference in temperature. Calorimetry is that branch of science which helps in measuring the changes which are taking place in the heat energy of a given body.
![10. [#668] Selling electricity, part 1
2.0
1.6
1.2
0.8
0.4
8 10
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time/hr
The display shows the energy
The image above is a neat copy of a photo of an electricity meter for a domestic solar
we sold to the electricity company on a winter's day. Between 7 a.m. and 5 p.m., how many kilowatt hours did this
household sell to the electricity company? E
array.
kW.hrs. Give your answer to two significant figures.
Each box is 100 W high and 1 hr wide.
Also, notice that the curve is not symmetric about noon, and there is a local minimum near noon. Think of possible
explanations, but there is no need to enter an answer.
Enter answer here
power/kW](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc6652ae4-5ddc-415f-bbca-7a9eba572c9e%2F6761861b-e29e-47db-ac45-f26a52eb5131%2Fa3p9lz_processed.png&w=3840&q=75)
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