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Ksju [112]
3 years ago
6

How to find an elements atomic weight

Chemistry
1 answer:
Tju [1.3M]3 years ago
3 0
To calculate<span> the average </span>atomic mass<span>, multiply the fraction by the </span>mass<span> number for each isotope, then add them together.</span>
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The boiling point of chloroform is 61.7 C. The enthalapy of vaporization is 31.4 kj/mol. Caculate the entropy of vaporization. D
dedylja [7]

Answer:

Δ S = 93.8 J/mol-K

Explanation:

Given,

Boiling point of chloroform = 61.7 °C

                                             = 273 + 61.7 = 334.7 K.

Enthalapy of vapourization = 31.4 kJ/mol.

Using Gibbs free   energy equation

Δ G = Δ H - T (ΔS)

at equilibrium (when the liquid is boiling), Δ G = 0

so,  0 = ΔH - T (Δ S)

      T (Δ S) = Δ H

and ΔS = ΔH / T

Δ S = (31400 J/mol.) / 334.7 K

Δ S = 93.8 J/mol-K

6 0
3 years ago
ILL GIVE BRAINLIEST
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Answer:

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Explanation:

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3 years ago
When uranium decays inside Earth, what does it produce?
noname [10]

Answer:

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3 years ago
Which element has the highest thermal conductivity
Vera_Pavlovna [14]

Answer:

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3 0
4 years ago
Which of the following is an example of a reaction that you've seen in your everyday life ?
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I believe this pertains to chemical reaction? So my guess would be answer A “Fire burning”

Don’t quote me though lol.
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