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3 years ago

Students who are awarded

SAT

2 answers:

Nezavi [6.7K]3 years ago

8 0

D because they get grants from the village so there fees are payed for so they have to pay back the grant

seropon [69]3 years ago

3 0

Answer is D. hope this helps

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

mote1985 [20]

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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2 years ago

Which of the following is the best description of the term resultant

eimsori [14]

The answer is probably B

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3 years ago

Read 2 more answers

Someone help me please!!!

VARVARA [1.3K]

I think the answer is choice C am not sure bruh

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4 years ago

Ad←→ is tangent to circle b at point c. what is the measure of ∠bca? 40º 50º 90º 180º circle b with radius b c. line tangent to

almond37 [142]

Answer:

Explanation:

I took the test for it

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A student releases a ball from 1. 5m from the floor. Which statement best describes the energy of the ball as it falls?

Zanzabum

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Its potential energy is changed to kinetic energy

Explanation:

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3 years ago