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3 years ago

What is the biggest difference between an exothermic and endothermic process?

Chemistry

2 answers:

noname [10]3 years ago

6 0

Answer:

Hi! This one would actually be A. The direction of energy flow.

Explanation:

Nuetrik [128]3 years ago

5 0

B.the amount of energy transferred.

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Given the information below, which is more favorable energetically, the oxidation of succinate to fumarate by NAD+ or by FAD? Fu

sasho [114]

Answer:

Oxidation by FAD

Explanation:

1. Oxidation by NAD⁺

Succinate ⇌ Fumarate + 2H⁺ + 2e⁻; E°´ = -0.031 V

NAD⁺ + 2H⁺ + 2e⁻ ⇌ NADH + H⁺; E°´ = -0.320 V

Succinate + NAD⁺ ⇌ Fumarate + NADH + H⁺; E°' = -0.351 V

2. Oxidation by FAD

Succinate ⇌ Fumarate + 2H⁺ + 2e⁻; E°´ = -0.031 V

FAD + 2H⁺ + 2e⁻ ⇌ FADH₂; E°´ = -0.219 V

Succinate + FADH₂ ⇌ Fumarate + FAD; E°' = -0.250 V

Neither reaction is energetically favourable, but FAD has a more positive half-cell potential.

FAD is the stronger oxidizing agent.

The oxidation by FAD has a more positive cell potential, so it is more favourable energetically.

8 0

3 years ago

Which of the process would you expect to have a negative value for entropy

Evgesh-ka [11]

I don’t see a picture

3 0

3 years ago

A car starts at mile marker 145 on a highway and drives at 55 mi/hrmi/hr in the direction of decreasing marker numbers. What mil

liq [111]

Answer:

135 mile marker will the car reach after 2 hours.

Explanation:

Speed of the car = 55 mile/hour

Distance covered in 2 hours = d

$Speed=\frac{Distance}{Time}$

$55 mile/hour=\frac{d}{2 hour}$

$d=55 mile/hour\times 2 hour=110 mile$

The direction of the car is in decreasing marker numbers which mienas that car had started from end where 145 mile marker was present.

So, the marker appearing after travelling 2 hours will be:

145 - 110 = 135

135 mile marker will the car reach after 2 hours.

5 0

3 years ago

a muddy stream quickly flows downhill. When it reaches a flatter area, the stream moves more slowly, and the water clears.Explai

Igoryamba

Answer: it calms it down and it dries and evaporates easier?

Explanation: I think that's how to explain it but I rlly dont want to get it wrong but i need points to ask a question

8 0

3 years ago

Carbon (C) and hydrogen (H) are pure substances. Each is made of only one type of atom, but carbon atoms are different from hydr

Simora [160]

Answer:

The answer to your question is: letter A

Explanation:

We can find carbon and hydrogen in the periodic table of the elements then, they are elements. Elements are composed by only one kind of atoms.

We can not find methane in the periodic table so, Methane is a compound. Compounds are composed by 2 or more atoms of the same element or of different elements.

Letter B is incorrect because carbon and hydrogen are elements.

Letter C is incorrect because Methane is a compound and carbon and hydrogen are elements.

Letter D is incorrect because Methane is a compound.

4 0

4 years ago