The entropy change ΔS for the combustion of methane to carbon dioxide and liquid water is -242.6 J/mol.K
<h3>What is the Entropy in a Chemical system?</h3>
In a chemical system, Entropy (ΔS) is a quantitative measure of the variety of possible ways to disperse energy inside a chemical system.
- In an isothermal process, entropy is determined as the quantity of heat transmitted to a system.
The chemical reaction for the combustion of methane can be expressed as:

The standard entropy of the combustion is expressed as:

Replacing the standard entropies of the compounds into the above equation, we have:


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Answer: 16.2-15.8/0.6=0.6667. Use normalcdf() to find the percentage from -999 to 0.6777 which is 0.7476*625=467
Explanation:
Answer:
x-axis: Amount of candy sold
y- axis: Amount of money made
Billy is making $0.20 per candy bar.
Linear function: y=3/5x-6
Billy sold 50 candy bars if he made $24.
The x-intercept represents the point when he will earn a profit because at point (5,-3) he sold 5 candy bars but he still made a loss of $3.
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