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3 years ago

I need help I'm being timed again

Chemistry

1 answer:

Rasek [7]3 years ago

6 0

I think answer should be a. Please give me brainlest let me know if it’s correct have a great night

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Students in Ms. Brown’s class are on a field trip at the aquarium. They observe the following biotic and abiotic factors in the

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Rocks - abiotic

Coral - biotic

Seaweed - biotic

Clownfish- biotic

sea turtle - biotic

water system - abiotic

7 0

3 years ago

Read 2 more answers

Consider a general reaction A ( aq ) enzyme ⇌ B ( aq ) A(aq)⇌enzymeB(aq) The Δ G ° ′ ΔG°′ of the reaction is − 5.980 kJ ⋅ mol −

Grace [21]

Answer : The value of $K_{eq}$ is, 11.2

The value of $\Delta G_{rxn}$ is -9.04 kJ/mol

Explanation :

The relation between the equilibrium constant and standard Gibbs free energy is:

$\Delta G^o=-RT\times \ln K_{eq}$

where,

$\Delta G^o$ = standard Gibbs free energy = -5.980 kJ/mol = -5980 J/mol

R = gas constant = 8.314 J/K.mol

T = temperature = $25^oC=273+25=298K$

$K_{eq}$ = equilibrium constant = ?

Now put all the given values in the above formula, we get:

$\Delta G^o=-RT\times \ln K_{eq}$

$-5980J/mol=-(8.314J/K.mol)\times (298K)\times \ln K_{eq}$

$K_{eq}=11.2$

Thus, the value of $K_{eq}$ is, 11.2

Now we have to calculate the $\Delta G_{rxn}$ .

The formula used for $\Delta G_{rxn}$ is:

The given reaction is:

$A(aq)\rightleftharpoons B(aq)$

$\Delta G_{rxn}=\Delta G^o+RT\ln Q$

$\Delta G_{rxn}=\Delta G^o+RT\ln \frac{[B]}{[A]}$ ............(1)

where,

$\Delta G_{rxn}$ = Gibbs free energy for the reaction = ?

$\Delta G_^o$ = standard Gibbs free energy = -30.5 kJ/mol

R = gas constant = $8.314\times 10^{-3}kJ/mole.K$

T = temperature = $37.0^oC=273+37.0=310K$

Q = reaction quotient

[A] = concentration of A = 1.8 M

[B] = concentration of B = 0.55 M

Now put all the given values in the above formula 1, we get:

$\Delta G_{rxn}=(-5980J/mol)+[(8.314J/mole.K)\times (310K)\times \ln (\frac{0.55}{1.8})$

$\Delta G_{rxn}=-9035.75J/mol=-9.04kJ/mol$

Therefore, the value of $\Delta G_{rxn}$ is -9.04 kJ/mol

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3 years ago

An acid is a substance that breaks into __ ions in water

Masteriza [31]

Hydrogen ions because acid dissociates into hydrogen ions when placed in aqueous solutions aka water

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4 years ago

Nerves impulses _____.

rjkz [21]

Answer:

are electrical signals

Explanation:

Feel free to correct me, I'm just trying to help

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3 years ago

⚠️Warning need help quick ⚠️<br><br> Balancing Equations<br><br> I need the solving steps as well

pentagon [3]

You just balance it ifk the steps it’s easy

5 0

3 years ago

I need help I'm being timed again​

I need help I'm being timed again