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pentagon [3]
2 years ago
7

Find δs o for the combustion of methane to carbon dioxide and liquid water.

SAT
1 answer:
mote1985 [20]2 years ago
6 0

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:

\mathbf{CH_{4(g)} + 2O_{2(g)} \to CO_{2(g)} + 2H_2O_{(l)}}

The standard entropy of the combustion is expressed as:

\mathbf{\Delta S^0 =(S^0 _{CO_{2}} + 2 \times S^0 _{H_{2}O} )+(-S^0 _{CH_{4}}  -2 \times S^0 _{O_{2}} })

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

\mathbf{\Delta S^0 =(213.8 \8 \ J/mol.K + 2 \times69.92 \ J/mol.K  )+(-186.16 \ J/mol.K -2 \times 205.04 \ J/mol.K})

\mathbf{\Delta S^0 =-242.6 \ J/mol.K}

Learn more about entropy here:

brainly.com/question/6364271

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<h3>What is community support?</h3>

Community support services are defined as services that are authorized, planned, and coordinated through resource management services.

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8 0
2 years ago
Why did the mexican cession result in renewed sectional tension
Gnom [1K]
<h2>✏Answer ✏</h2>

<em>The Mexican Cession gave the United States a great deal of land in what is now the southwestern part of the United States. The United States got land in the present-day states of California, Nevada, Wyoming, Utah, Colorado, New Mexico, and Arizona as a result of winning the Mexican-American War.</em>

Explanation:

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2 years ago
What is secularism?how has it supported religious tolerance?​
solniwko [45]

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2 years ago
You’ve dreaded it for a while, but now you feel prepared. In 30 minutes you’ll have to terminate tim, a 12-year employee who is
boyakko [2]

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Tone of communication

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tone means everything when you speak to someone, for example you can have an angry tone with someone and they will hear and feel the anger. so when talking tone is the key perception when you are talking to someone.

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Answer:

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Once a year is an ideal time to check the charging and battery. If you have the time and expertise, you can obviously do it twice a year.

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