Answer:
60 sec.
Explanation:
The first person has to travel 200m at 2 m/s. It will take him 200/2=100 seconds to reach the gate. The second person is moving towards the gate at 2 + 3 meters per second so it will take her 200/5 = 40 seconds to reach the gate. Therefore, person #1 needs an extra 100-40 = 60 seconds.
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:


Learn more about entropy here:
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Answer:
Why are you giving us the answer..?
Answer: i need more point to answer this
Explanation:
William Julius Wilson is known to be a popular man in history. William Julius Wilson believes the cause of the emergence of an urban underclass is economic and social structural deficits in society.
William Julius Wilson was known to be born December 20, 1935. He was a famous American sociologist. He stated the importance of neighborhood effects and also showed how small employment opportunities and weakened institutional resources influenced poverty within American inner-city neighborhoods.
The underclass is known to be a collection of identifying traits, such as high rate of joblessness, single parents births etc.
See full question below
William Julius Wilson believes the cause of the emergence of an urban underclass is
a. the "culture of poverty."
b. prejudice and racism.
c. economic and social structural deficits in society.
d. too much immigration from some areas.