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andrew-mc [135]
3 years ago
10

which equation describes what happens in photosynthesis? a. 6co2 6h2o energy → c6h12o6 6o2 b. c6h12o6 h20 → co2 energy c. c6h12o

6 6o2 → 6co2 6h2o energy d. co2 o2 h20 energy → ch2o5
Chemistry
2 answers:
leonid [27]3 years ago
8 0
<span>6CO</span>₂ +<span> 6H</span>₂O +<span> energy → C</span>₆H₁₂O₆<span> 6O</span>₂
Murljashka [212]3 years ago
4 0

Answer : The correct option is, (a) 6CO_2+6H_2O\overset{sunlight}\rightarrow C_6H_{12}O_6+6O_2

Explanation :

Photosynthesis : It is a type of chemical process which occurs in the green plants or the living organisms.

During the photosynthesis process, carbon dioxide reacts with the water in the presence of sunlight to gives product  as glucose and oxygen.

In this reaction, carbon dioxide and water molecule are the reactants and glucose and oxygen are the products.

The balanced chemical reaction will be,

6CO_2+6H_2O\overset{sunlight}\rightarrow C_6H_{12}O_6+6O_2

Hence, the correct option is, (a)

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The standard free energy of formation, ΔG∘f, of a substance is the free energy change for the formation of one mole of the subst
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Answer:

B. 2 Na(s) + O₂(g) → Na₂O₂(s); ΔG∘f=−451.0 kJ/mol

D. 2 SO(g) + O₂(g) → 2 SO₂(g); ΔG°f=−600.4 kJ/mol

Explanation:

The spontaneity of a reaction  is given by the value of the standard Gibbs free energy of the reaction (ΔG°rxn). The more negative is the ΔG°rxn, the more spontaneous is a reaction.

The ΔG°rxn can be calculated using the following expression:

ΔG°rxn = ∑np × ΔG°f(products) − ∑nr × ΔG°f(reactants)

By definition, the standard Gibbs free energy of formation of simple substances in their most stable state is zero. That is why, in the reaction of formation of a compound ΔG°rxn = ΔG°f(product).

<em>Based on the standard free energies of formation, which of the following reactions represent a feasible way to synthesize the product? </em>

<em>     A. N₂(g) + H₂(g) → N₂H₄(g); ΔG°f=159.3 kJ/mol. </em>

<em>     </em>Not feasible. ΔG°rxn = ΔG°f(product) > 0.

    <em>B. 2 Na(s) + O₂(g) → Na₂O₂(s); ΔG°f=−451.0 kJ/mol</em>

    Feasible. ΔG°rxn = ΔG°f(product) < 0.

    <em>C. 2 C(s) + 2 H₂(g) → C₂H₄(g); ΔG°f=68.20 kJ/mol</em>

    Not feasible. ΔG°rxn = ΔG°f(product) > 0.

    <em>D. 2 SO(g) + O₂(g) → 2 SO₂(g); ΔG°f=−600.4 kJ/mol</em>

    Feasible. ΔG°rxn = ΔG°f(product) < 0.

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Hydrogen sulfide is used primarily to produce sulfuric acid and sulfur. It is also used to create a variety of inorganic sulfides used to create pesticides, leather, dyes, and pharmaceuticals. Hydrogen sulfide is used to produce heavy water for nuclear power plants (like CANDU reactors specifically).

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Consider the chemical equation. 2NBr3 + 3NaOH mc008-1.jpg N2 + 3NaBr + 3HOBr If there are 40 mol of NBr3 and 48 mol of NaOH, wha
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Based on the relative energy of the absorbed electromagnetic radiation, which absorber, a peptide bond or an aromatic side chain
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Aromatic side chain exhibits an electronic excited state that is closer in energy to the ground state.

  • In order to respond to this query, we must decide whether a peptide bond or an aromatic side chain is demonstrating an electronic exited state that is more closely related to the ground state in terms of energy.
  • When our energy is as low as possible, we are in the ground state.
  • What I want to point out is that if we can choose between the two options—peptide bond or aromatic side chain—without knowing the specific reasons, we can immediately rule out two potential answers.
  • Consider what we already know about energy, we have:

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  • That indicates that when we have more energy, a wavelength decreases. Lower energy corresponds to higher wavelength.
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Thus, Aromatic side chain exhibits an electronic excited state that is closer in energy to the ground state.

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