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nikitadnepr [17]
3 years ago
5

The symbol ∆hf° stands for the _____. heat of reaction for a chemical reaction specific heat of a substance standard heat of for

mation for a compound heat capacity of a substance
Chemistry
1 answer:
mojhsa [17]3 years ago
3 0
ΔHfo stands for <span>standard heat of formation for a compound.

Heat of formation of compound is mathematically expressed as,
</span>∑Hproducts - ∑Hreactants
<span>
If value of </span>ΔHfo is negative, it suggest that is exothermic reaction. If ΔHfo is positive, it suggest that it is endothermic reaction. <span>


</span>
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Answer:

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Whenever you are restricted as "constant" temperature, volume, or pressure...cancel them off of your equation.

in this case 3. is indirectly telling us to cancel the temperature (T).

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now notice that any relation ship that is multiplied like the one above consists of inversely related quantities. & so we conclude that-

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similarly in 1. we'll cancel p off of the general formula (1)

to be left with V1/T1 = V2/T2

also note that quantities involved in division are directly related to each other & hence the answer.

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