Burning wood in a fireplace is an example of what kind of energy conversion?
2 answers:
Answer:
Chemical potential energy converting to heat energy.
Explanation:
Burning of wood in a fire place or burning of any other compound in presence of oxygen involves combustion. During combustion there is breaking and making of bonds as combustion is a chemical reaction.
For example:
Combustion of carbon gives carbon dixoide:
Combustion is an exothermic reaction, it releases large amount of energy.
Thus in all we are converting the chemical energy of a substance to heat energy during combustion.
Hence combustion involves Chemical potential energy converting to heat energy.
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Percentage recovery gives us an idea of the amount of pure substance recovered after the chemical reaction. Percentage recovery can be more than 100 % or less than 100 %. Usually, in any experiment performed the weight percentage recovery will be less than 100. Percent recovery values greater than 100 show that the recovered compound is contaminated.
Amount of acetaminophen initially taken = 350 mg
Amount of acetaminophen obtained after recovery =185 mg
=
= 52.9%
Answer:
for the reaction is 18.05
Explanation:
Equilibrium constant in terms of partial pressure () for this reaction can be written as-
where and
are equilibrium partial pressure of
and
respectively
Hence = 18.05
So, for the reaction is 18.05