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raketka [301]
3 years ago
14

Using two chemical compounds as an example, describe the difference between law of definite proportions and the law of multiple

proportions.
Chemistry
1 answer:
elena-14-01-66 [18.8K]3 years ago
5 0

The Law of Definite Proportions (or Proust's Law) states that in a single chemical compound (such as H2O or CO) the ratio of it's component elements is a fixed whole number ratio.


The Law of multiple proportions applies when two or more elements/compounds have multiple ways of combining into different compounds.

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Answer:

D

Explanation:

The amount of energy released or absorbed is equal the product of the mass, the specific heat capacity and the temperature change. The temperature change being the difference between the final and initial temperature.

Q = mc∆T

Q = heat energy (Joules, J) m = mass of a substance (kg) c = specific heat (units J/g∙K)

∆ is a symbol meaning "the change in" ∆T = change in temperature (Kelvins, K)

From the data provided in the question, we can deduce that:

Q = 16.7KJ = 16,700J

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For the temperature, let the final temperature be f. This means our ∆T = f - 20

16,700 = 225 * 1.74 * (f - 20)

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Explanation:

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