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lianna [129]
2 years ago
6

There are many ways of generating electrical energy. Research three of the following, describe how they work, and discuss the pr

os and cons of each of the three chosen electrical power plants:
thermal power plant (aka coal power plant)
nuclear power plant
solar power plant
hydroelectric power plant
geothermal power plant
tidal power plant
wind farms
Chemistry
1 answer:
skelet666 [1.2K]2 years ago
5 0

Answer:

Wind farms, nuclear power plant, and hydroelectric power plants

Explanation:

Winds farms:

Pros: Creates electrical energy easily, doesn't cause pollution and no fossil fuels.

Cons: Only works in windy climates, hard to function.

Nuclear plants:

Pros:Creates electrical energy out of wastes, very easy and doesn't require fossil fuels.

Cons: Causes mass pollution, very harmful to the ecosystem and humans.

Hydroelectric plants:

Pros: uses only water and turbines, no fossil fuels either.

Cons: Water usage causes faster evaporation, most dams overuse them.

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Describe the trend for atomic radius from left to right across a period. Use atomic
Allisa [31]

As you move across a period, the atomic radii decreases. ... As you move across a period, electrons are added to the same energy level while protons are also being added. The concentration of more protons creates a higher effective nuclear charge.

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2 years ago
Use the "x is small" approximation to find the concentration of the products in the following reaction which initially contains
Mrrafil [7]

Answer:

Concentration of product at equilibrium ;

[H^+]=0.0000229 M

[CN^-]=0.0000229 M

Explanation:

HCN(aq)\rightleftharpoons H^+(aq) + CN^-(aq)

initially

0.85 M        0    0

(0.85-x)M    x      x

The equilibrium constant of reaction = K_c= 6.17\times 10^{-10}

The expression of an equilibrium cannot can be written as:

K_c=\frac{[H^+][CN^-]}{[HCN]}

6.17\times 10^{-10}=\frac{x\times x}{(0.85-x)}

Solving for x:

x = 0.0000229

Concentration of product at equilibrium ;

[H^+]=0.0000229 M

[CN^-]=0.0000229 M

4 0
2 years ago
What is the resistance of a 150 W lightbulb connected to a 24 V voltage source?
Luda [366]

Answer:

3.84 Ω

Explanation:

From the question given above, the following data were obtained:

Electrical power (P) = 150 W

Voltage (V) = 24 V

Resistance (R) =?

P = IV

Recall:

V = IR

Divide both side by R

I = V/R

P = V/R × V

P = V² / R

Where:

P => Electrical power

V => Voltage

I => Current

R => Resistance

With the above formula (i.e P = V²/R), we can calculate resistance as illustrated below:

Electrical power (P) = 150 W

Voltage (V) = 24 V

Resistance (R) =?

P = V²/R

150 = 24² / R

150 = 576 / R

Cross multiply

150 × R = 576

Divide both side by 150

R = 576 / 150

R = 3.84 Ω

Thus, the resistance is 3.84 Ω

4 0
3 years ago
What is activation energy
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3 years ago
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Which product is typically made using softwood?
deff fn [24]

Answer:c

Explanation:

softwood is used in doors roofs and so on

5 0
3 years ago
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