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raketka [301]
3 years ago
9

How is energy converted in a hydroelectric plant?

Chemistry
1 answer:
faltersainse [42]3 years ago
7 0

Answer:

Energy is converted in a hydroelectric plant as follows;

The kinetic energy of water turns turbines; the mechanical energy of the turbines turns the generator, which produces electrical energy

Explanation:

The water in an hydroelectric plant is given potential energy by building an artificial dam to raise the height of the water above the turbine

The high potential energy of the water is converted to kinetic energy which provides the power that turns the turbine transforming the kinetic energy of the water into rotational kinetic energy of the turbine by conservation of mechanical energy;

The shaft connected between the turbine and the generator, turns the generator by the mechanical energy of the turbine and as the generator turns in a magnetic field, electricity is produced by magnetic induction according to Faraday's law.

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Vedmedyk [2.9K]
It's the sound before the lightning because sound travels faster than light.
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Please write down the definitions of elements, compounds, mixtures, homogenous mixtures, and heterogenous mixtures.
MA_775_DIABLO [31]

A homogeneous mixture is a mixture in which the composition is uniform throughout the mixture.

A heterogeneous mixture is a mixture in which the composition is not uniform throughout the mixture.
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Rank these systems in order of decreasing entropy. 1 = Greatest entropy and 7 = Least entropy. Group of answer choices 1 mol of
AlladinOne [14]

Answer:

  1. 1 mole of carbon disulfide gas at 273 K and 40 L
  2. 1 mol of chlorine gas at 273 K and 40 L
  3. 1 mol of neon gas at 273 K and 40 L
  4. 1 mol of neon gas at 273 K and 20 L
  5. 1/2 mol of neon gas at 273 K and 20 L
  6. 1/2 mol of neon gas at 100 K and 20 L
  7. 1/2 mol of liquid neon at 100 K

Explanation:

Entropy is the measure of disorder or randomness in a closed system. Its an extensive property of a thermodynamic system

The following points must be considered when ranking the systems according to their entropy:

  1. The entropy of gases are highest than liquids or solid. And entropy of liquid is higher than solid. That is because gas has more microstate thus have the highest entropy.
  2. Entropies of large complicated molecules are greater than those of smaller, simpler molecules. Because larger molecules have more disorder because of the greater number of ways they can be move around in three dimensional space.
  3. highest temperature and highest volume will lead to greatest entropy
  4. 1 mole of any substance will have greater entropy than 1/2 mole of that same substance
6 0
2 years ago
Determine the fraction of an original sample of tritium that remains unchanged after 24.62 years.
patriot [66]

Answer: The answer is 1/4

Explanation:

7 0
2 years ago
Identify the balanced chemical equation that represents a single displacement reaction. CF4 2Br2 ⟶ CBr4 2F2 3H2SO4 2Al ⟶ Al2(SO4
Simora [160]

Answer:

3H₂SO₄ + 2Al₂(SO₄)₃  → Al₂(SO₄)₃ + 3H₂

Explanation:

                           3H₂SO₄ + 2Al₂(SO₄)₃  → Al₂(SO₄)₃ + 3H₂

In this type of reaction, one substance is replacing another:

                      A + BC  →  AC + B

In a single displacement reaction, atoms replace one another based on the activity series. Elements that are higher in the activity series. Also, if the element that is to replace the other in a compound is more reactive the reaction will occur. If it is less reactive, there will be no reation.

In the first equation, fluorine is more reactive than bromine. Therefore, bromine cannot replace bromine.

In the second equation, the displacement is between hydrogen and aluminium. Hydrogen is lower in the activity series, this implies that aluminum will replace it.

5 0
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