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2 years ago

Why is thermal energy produced not generally usable to do work

Chemistry

2 answers:

inysia [295]2 years ago

4 0

Because the thermal energy<span> dissipates too quickly and is </span>not<span> concentrated enough! :)</span>

sergiy2304 [10]2 years ago

4 0

Thermal Energy disintigrates to fast. or somthing like that. I know my Older Brother worked on i or somthing like that earlier.

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Explain what a covalent bond is, what types of elements form covalent bonds and give an example of 2 elements that could bond co

tino4ka555 [31]

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2 years ago

Porque la gasolina cintemos plomo?

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calculate the volume of carbon dioxide of room temperature and pressure obtained from 30 grams of glucose

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Explanation:

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2 years ago

Question 2 of 50

wolverine [178]

The thermal decomposition of calcium carbonate will produce 14 g of calcium oxide. The stoichiometric ratio of calcium carbonate to calcium oxide is 1:1, therefore the number of moles of calcium carbonate decomposed is equal to the number of moles of calcium oxide formed.

Further Explanation:

To solve this problem, follow the steps below:

Write the balanced chemical equation for the given reaction.
Convert the mass of calcium carbonate into moles.
Determine the number of moles of calcium oxide formed by using the stoichiometric ratio for calcium oxide and calcium carbonate based on the coefficient of the chemical equation.
Convert the number of moles of calcium oxide into mass.

Solving the given problem using the steps above:

STEP 1: The balanced chemical equation for the given reaction is:

$CaCO_{3} \rightarrow \ CaO \ + \ CO_{2}$

STEP 2: Convert the mass of calcium carbonate into moles using the molar mass of calcium carbonate.

$mol \ CaCO_{3} \ = 25 \ g \ CaCO_{3} \ (\frac{1 \ mol \ CaCO_{3}}{100.0869 \ g \ CaCO_{3}})\\ \\\boxed {mol \ CaCO_{3} \ = 0.2498 \ mol}$

STEP 3: Use the stoichiometric ratio to determine the number of moles of CaO formed.

For every mole of calcium carbonate decomposed, one more of a calcium oxide is formed. Therefore,

$mol \ CaO \ = 0.2498 \ mol$

STEP 4: Convert the moles of CaO into mass of CaO using its molar mass.

$mass \ CaO \ = 0.2498 \ mol \ CaO \ (\frac{56.0774 \ g \ CaO}{1 \ mol \ CaO})\\ \\mass \ CaO \ = 14.008 \ g$

Since there are only 2 significant figures in the given, the final answer must have the same number of significant figures.

Therefore,

$\boxed {mass \ CaO \ = 14 \ g}$

Learn More

Learn more about stoichiometry brainly.com/question/12979299
Learn more about mole conversion brainly.com/question/12972204
Learn more about limiting reactants brainly.com/question/12979491

Keywords: thermal decomposition, stoichiometry

5 0

2 years ago

The _________________ are either elements or compounds which are present prior to a chemical reaction.

mr Goodwill [35]

Reactants would be the missing word in the sentence because they make up the products in a chemical reaction

3 0

2 years ago

Read 2 more answers