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3 years ago

8

formation of bubbles can be associated with physical changes under certain contexts. provide examples of specific substances and

describe the situations in which bubbles form during a physical change and a chemical change.

1 answer:

ira [324]3 years ago

6 0

Sorry bro don’t know same boat u in

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The Keq for the equilibrium below is 5.4 × 1013 at 480.0 °C. 2NO (g) + O2 (g) 2NO2 (g) What is the value of Keq at this temperat

kodGreya [7K]

<u>Answer:</u> The equilibrium constant for $NO_2(g)\rightleftharpoons NO(g)+\frac{1}{2}O_2(g)$ equation is $1.36\times 10^{-7}$

<u>Explanation:</u>

The given chemical equation follows:

$2NO(g)+O_2(g)\rightleftharpoons 2NO_2(g)$

The value of equilibrium constant for the above equation is $K_{eq}=5.4\times 10^{13}$

Calculating the equilibrium constant for the given equation:

$NO_2(g)\rightleftharpoons NO(g)+\frac{1}{2}O_2(g)$

The value of equilibrium constant for the above equation will be:

$K'_{eq}=\frac{1}{\sqrt{K_{eq}}}\\\\K'_{eq}=\frac{1}{\sqrt{5.4\times 10^{13}}}\\\\K'_{eq}=1.36\times 10^{-7}$

Hence, the equilibrium constant for $NO_2(g)\rightleftharpoons NO(g)+\frac{1}{2}O_2(g)$ equation is $1.36\times 10^{-7}$

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3 years ago

If you lived in Alaska, which of the following natural gases could you keep in an outdoor storage tank in winter: a. Methane (CH

wariber [46]

Answer:

Methane

Explanation:

The gas that you could keep in an outdoor storage tank in winter in Alaska is Methane.

The reason is the extreme low temperature during the winter. The boiling point of butane is 44 ºF ( -1ºC) and that of propane is a higher -43.6 º F but still within the range of average minimum winter temperature in Alaska (-50 ªF). Therefore we will have condensation in the tanks and not enough gas pressure.

Methane having a boling point of -259 ºF will not condense at the low wintertime temperatures in Alaska.

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3 years ago

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When scientists look at these examples, what do they know about the atoms? Carbon-12 Carbon-14

lorasvet [3.4K]

Carbon-12 and Carbon-14 are isotopes of Carbon. Although they have the same number of protons, the <span>number of neutrons in each atom is not the same~</span>

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4 years ago

For each image, select the state of matter represented.

kifflom [539]

Answer:

need image

Explanation:

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3 years ago

How did the forensic sculptor/.facial reconstructionist assist in this case? <br><br><br> FORENSIC

Helga [31]

Answer:

What case? We have no context

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3 years ago