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AfilCa [17]
3 years ago
14

What is the minimum number of kiloJoules needed to change 40.0 grams of water at 100C to steam at the same temperature and press

ure
Chemistry
1 answer:
kykrilka [37]3 years ago
5 0

Answer:

90.4Kg

Explanation:

The energy required= latent heat of vaporization

Latent heat of vaporization of water= 2260 KJ/Kg

Mass of water = 0.04 Kg

Heat required= 0.04Kg× 2260 KJ/Kg

Heat required= 90.4Kg

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Compose an essay on hydroelectric power of at least 400 words.
MrRissso [65]

Answer:

Hydropower plants get their energy from falling water to generate electricity. A generator then converts the mechanical energy from the turbine into electrical energy. Hydroplants range in size from "micro-hydros" that power only a few homes to giant dams that provide electricity for millions of people. A hydroelectric dam is one of the major components of a hydroelectric facility. A dam is a large, man-made structure built to contain some body of water. In addition to construction for the purpose of producing hydroelectric power, dams are created to control river flow and regulate flooding. Hydropower is fueled by water, so it's a clean fuel source, meaning it won't pollute the air like power plants that burn fossil fuels, such as coal or natural gas. Hydroelectric power is a domestic source of energy, allowing each state to produce their own energy without being reliant on international fuel sources. However, it can also cause environmental and social threats, such as damaged wildlife habitat, harmed water quality, obstructed fish migration, and diminished recreational benefits of rivers.

Explanation:

5 0
3 years ago
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What molecule in the atmosphere is nitrogen normally found in
lyudmila [28]
Search Results
Featured snippet from the web

It is found in amino acids that make up proteins, in nucleic acids, that comprise the hereditary material and life's blueprint for all cells, and in many other organic and inorganic compounds. In addition, nitrogen comprises about 80% of the Earth's atmosphere.
3 0
3 years ago
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What characteristics of the life cycles of a snake and an eagle are similar? tysm for the help
Vilka [71]
D, in both animals, the infants are hatched from an egg outside the mother.
6 0
2 years ago
If you react 59.54 g of S and 78 g of HNO3, how many grams of NO2 can you
Novay_Z [31]

Answer:

56.94759 grams of NO2

Explanation:

Stoichiometric Equation:

1 S + 6 HNO3 → 1 H2SO4 + 6 NO2 + 2 H2O.

This is so you can create ratios between each compound in the reaction, and identify the limiting and excess reactants to determine exactly how much can be produced?

The coefficients or molecular quantity of each compound in the balanced equation represents the amount of moles.

To figure out how much can be produced, you have to convert 59.54 g of S into moles of S and 78 g of HNO3 into moles of HNO3.

A reference such as a periodic table can be very helpful as it has the atomic mass of each element which is the mass with respect to 1 mol of that element.

6 0
3 years ago
What is the molar mass of magnesium nitride (Mg3N2) if the molar mass of magnesium is 24.31g and nitrogen is 14.01g?
iren [92.7K]
Mg3N2

Mg - 3 times 24.31 g=  72.93 g

N - 2 times 14.01 g=  +  28.02 g
 Molar Mass=    100.95 g/mol Mg3N2
4 0
3 years ago
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