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Deffense [45]
3 years ago
7

The same amount of ____ that existed before the change of state

Chemistry
1 answer:
enot [183]3 years ago
7 0

Answer:

the same amount of substance that existed

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Consider the following chemical equilibrium:
jok3333 [9.3K]

Answer:

Kc = [CH₄] / [H₂]²

Kp = [CH₄] / [H₂]² * (0.082*T)^-1

Explanation:

Equilibrium constant, Kc, is defined as the ratio of the concentrations of the products over the reactants. Also, each concentration of product of reactant is powered to its coefficient.

<em>Pure solids and liquids are not taken into account in an equilibrium</em>

Thus, for the reaction:

C(s)+ 2H₂(g) ⇌ CH₄(g)

Equilibrium constant is:

<h3>Kc = [CH₄] / [H₂]²</h3>

Now, using the formula:

Kp = Kc* (RT)^Δn

<em>Where R is gas constant (0.082atmL/molK), T is the temperature of the reaction and Δn is difference in coefficients of gas products - coefficients of gas reactants (1 - 2= -1)</em>

Replacing:

<h3>Kp = [CH₄] / [H₂]² * (0.082*T)^-1</h3>

<em />

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3 years ago
Which of these is a conversion from chemical energy to mechanical energy?
Natasha_Volkova [10]

Answer:

C . A person lifting a weight

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What's a hypothesis for Which fruit contains the most vitamin c?
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Answer: I hypothesize that kiwi contains the most vitamin C

Then after that you test your hypothesis by comparing fruit that contains vitamin C in an experiment.
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What is the chemical formula for the molecule shown?
tatyana61 [14]

Answer: NH3

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The polarity of the water molecule makes it the best universal solute.
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That statement is true
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