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vazorg [7]
1 year ago
9

What energy transfer occurs when a solar panel uses sunlight to provide power to a house?

Chemistry
1 answer:
vodomira [7]1 year ago
7 0

Radiant energy is  converted to electrical energy, when a solar panel uses sunlight to provide power to a house.

<h3>What is electrical energy?</h3>
  • Electrical energy is produced when electrically charged particles move, producing energy.
  • Electrical energy is a general term that describes energy that has been transformed from electric potential energy.
  • Electric current and electric potential given by an electrical circuit serve as the source of this energy (e.g., provided by an electric power utility).
  • This electric potential energy stops being electric potential energy after it has been changed into another form of energy.
  • Because of this, all electrical energy is potential energy before it is used.
  • Electrical energy can always be referred to as another type of energy once it has been transformed from potential energy (heat, light, motion, etc.).

To know more about electrical energy, refer:

brainly.com/question/874116

#SPJ4

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A binary compound created by reaction of nitrogen and an unknown element E contains 30.46% N and 69.54% E by mass. If the formul
aleksklad [387]

Answer:

15.95

Explanation:

This question is a modification of the calculation of  the empirical formula of a compound given its percent composition and atomic weights of the elements in the compound.

Here we are given the formula and the percent composition, so we know that there are 4 atoms of E per 2 atoms of N so lets solve using the information given.

In 100 grams of the binary compound we have

30.46 g N

69.54 g E

The number of moles is the mass divided by atomic weight:

mol N = 30.46 g / A.W N = 30.46 g / 14.00 g/mol = 2.18 mol N

mol E = 65.54 g / A.W E

Thus,

4 mol E/ 2 mol N = ( 69.54 g/ A.W E ) / 2.18

2  A.E = 65.54 g / 2.18  ⇒ A.W E = 69.54 g / ( 2 x 2.18 ) = 15.94 g

So the A.W is 15.94 g/mol which is close  the atomic weight of O.

5 0
3 years ago
1) The heat of combustion for the gases hydrogen, methane and ethane are −285.8, −890.4 and −1559.9 kJ/mol respectively at 298K.
Morgarella [4.7K]

Answer:

The enthalpy of the reaction is 64.9 kJ/mol.

Explanation:

H_2 + \frac{1}{2}O_2\rightarrow H_2O,\Delta H_1 =-285.8 kJ..[1]

CH_4 + 2O_2\rightarrow CO_2 + 2H_2O,\Delta H_2 =-890.4 kJ..[2]

C_2H_6 + \frac{7}{2}O_2\rightarrow 2CO_2 + 3H_2O,\Delta H_3= -1559.9 kJ..[3]

2CH_4(g)\rightarrow C_2H_6(g) + H_2(g),\Delta H_4=?..[4]

2 × [2] - [1]- [3] = [4]  (Using Hess's law)

\Delta H_4=2\times \Delta H_2 -\Delta H_1 -\Delta H_3

\Delta H_4=2\times (-890.4 kJ)-(-285.8 kJ) -(-1559.9 kJ)

\Delta H_4=64.9 kJ/mol

The enthalpy of the reaction is 64.9 kJ/mol.

3 0
3 years ago
(ii) Electrons are supplied to the external circuit. How and where is this done?<br> [2]
pentagon [3]

Answer:

The electrons are supplied by the species getting oxidized. They move from anode to the cathode in the external circuit. The external battery supplies the electrons. They enter through the cathode and come out through the anode

7 0
3 years ago
Nyatakan maksud bagi kation​
PilotLPTM [1.2K]

lanuage ? lanuage ? lanuage ?

6 0
2 years ago
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Identify the environmental factor that caused the change in gene expression in the previous question. *
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It depends what Is the previous question
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