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3 years ago

Plz help ! I know its a lot of work, but i would really appreciate it.

SAT

1 answer:

Vilka [71]3 years ago

8 0

oh i feel so bad for you,wish you can get someone can help you.

be safe wear your mask on and don't be close to anyone

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How is energy used today different from energy use 200 years ago

prohojiy [21]

They mostly changed how the fosil fuels , transprotation ,appliances

6 0

3 years ago

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

6 0

2 years ago

William works at an advertising agency. His company regularly sends out informative documents to its existing clients. He is in

IrinaVladis [17]

Answer:

Newsletter

Explanation:

Newsletters are updates to things happening at the company that current or existing clients may need to know

6 0

3 years ago

Read 2 more answers

1. In what ways do scientific institutions established by the government would alleviate the economic condition of the Filipino

Bond [772]

Answer:

yan po ung nahanap ko at screenshot lang po yan tas basahin nyu lang po yan may makikita kayo jan tas yan po ung continue dahil indi kasya saking cp ang taas kc sa sagot nila ehh

Explanation:

I hope it helps

8 0

3 years ago

Steve Harvey's daughter; Lori, was caught shooting birds at the time Square in New York. The cops asked how many birds she had i

lyudmila [28]

Answer:

9 birds

Explanation:

f is finches, h is herons, w is warblers, t is total

f+h+w=t

All but 6 means subtracted from the total

f=t-6

h=t-6

w=t-6

Adding the three equations gets 3t-18 and plug that back in and isolate

t=3t-18

t= 9

6 0

3 years ago