400 BTU of wasted heat energy is present in the form of electricity.
<h3><u>Energy sources and usage</u></h3>
- Potential energy sources include fossil fuels like coal, oil, and natural gas. Other energy sources include hydro, solar, and wind.
- Additionally, nuclear energy may also come from radioactive materials.But energy will constantly lose its strength.
- Industries would never be able to derive a full amount of energy from their sources.We can only obtain 60% of the energy in ideal situations, such as the Carnot engine. This is if the case is ideal. Actually, we receive considerably less than this for roughly 40%.
So, when efficiency is 60%, energy is used 60% of the time and lost 40% of the time. Thus, according to question, the energy that is wasted is:
1000 BTUx (40/100) = 400 BTU
To know more about energy sources and wastage, refer to:
brainly.com/question/8702962
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The particles are atoms, his theory is the atomic theory
Answer:
15. 2.66 moles .
16. 2.09L.
Explanation:
Molarity of a solution is simply defined as the mole of solute per unit litre of the solvent. Mathematically, it is represented as:
Molarity = mole /Volume.
With the above formula, let us answer the questions given above
15. Data obtained from the question include the following:
Volume of solution = 1.4L
Molarity = 1.9M
Mole of solute =.?
Molarity = mole /Volume
1.9 = mole / 1.4
Cross multiply
Mole = 1.9 x 1.4
Mole = 2.66 moles
Therefore, the mole of the solute present in the solution is 2.66 moles.
16. Data obtained from the question include the following:
Mole of solute = 0.46 mole
Molarity = 0.22M
Volume of solvent (water) =.?
Molarity = mole /Volume
0.22 = 0.46/Volume
Cross multiply
0.22 x Volume = 0.46
Divide both side 0.22
Volume = 0.46/0.22
Volume = 2.09L
Therefore, 2.09L of water is required.
Answer:
A. we can use sulfuric acid to prepare PbSO4
