The cell in which the following reaction occurs

Asked by admin @ 29/08/2021 in Chemistry viewed by 300 People

The cell in which the following reaction occurs:

2Fe 3+ (aq) + 21" (aq) →2Fe2+ (aq) +1, (s) has E = 0.236 V at 298 K.Calculate the standard Gibbs energy and the equilibrium constant of thecell reaction.

Answered by admin @ 29/08/2021

Given :

E° of the cell = 0.236 V

Temperature (T) = 298 K

To Find :

Standard Gibbs energy

Equilibrium constant of the reaction

Solution :

The cell reaction is

$2Fe^{3+}(aq)+2I^-(aq)\rightarrow 2Fe^{2+}(aq)+I_{2}(s)$

The standard Gibbs energy for the reaction

$\Delta G_{0}=-nFE^{0}_{cell}$

$\Delta G_{0}=-2\times0.236 \times96487$

$\Delta G_{0}= -45.54 kJ/mol$

The Gibb’s energy for the reaction is -45.54 kJ/mol.

We know the relation

$logK_{c}=\frac{nFE^{0}_{cell)}}{2.303RT}$

$logK_{c}=\frac{2\times96487 \times0.326}{2.303 \times8.31 \times298}$

$logK_{c}=7.9854$

$K_{c}=9.62\times10^{7}$

The equilibrium constant for the reaction is 9.62×10⁷.

Balance each of the following redox reactions occurring in acidic aqueous solution.

Asked by maham237 @ 25/12/2020 in Chemistry viewed by 431 persons

Balance each of the following redox reactions occurring in acidic aqueous solution. Part A Zn(s)+Sn2+(aq)→Zn2+(aq)+Sn(s) Express your answer as a chemical equation. Identify all of the phases in your answer. …

Cell type in which the initial carboxylation reaction occurs

Asked by admin @ 17/08/2021 in Biology viewed by 307 persons

Cell type in which the initial carboxylation reaction occurs in c3 and c4 plant

What are common signs that a chemical reaction has occurred

Asked by admin @ 29/11/2021 in Chemistry viewed by 300 persons

Identify common signs that a chemical reaction has occurred

Chemical reactions occur when atoms are separated joined or rearranged

Asked by admin @ 29/11/2021 in Chemistry viewed by 306 persons

According to Dalton's atomic theory, elements are composed of tiny particles called ___ .Atoms of each element are ___ from the Atoms of all other elements. Atoms of different elements …

What do chemical reactions that absorb energy need to occur

Asked by admin @ 26/11/2021 in Biology viewed by 273 persons

What do chemical reactions that absorb energy need to occur

Complete and balance the equations for the following combustion reactions

Asked by admin @ 26/11/2021 in Chemistry viewed by 339 persons

C. Complete the following combustion reaction. Write your balanced equation two different ways. C8H18+O2→ C8H18+O2 →

How do you know when a chemical reaction has occurred

Asked by admin @ 26/11/2021 in Chemistry viewed by 293 persons

How do we know that a chemical reaction occured

How do you know if a chemical reaction has occurred

Asked by admin @ 26/11/2021 in Chemistry viewed by 301 persons

How do we know that a chemical reaction occured

In what order do the following steps of development occur

Asked by admin @ 22/11/2021 in Biology viewed by 313 persons

In what order do the stages of prenatal development occur?

Which of the following is not true of fuel cells

Asked by admin @ 22/11/2021 in Chemistry viewed by 309 persons

PLEASE HELP! Which of the following is true about fuel cells? A. They only produce energy in short bursts. B. They are inexpensive. C. They have never been built or …

Where do replication transcription and translation occur in the cell

Asked by admin @ 28/10/2021 in Biology viewed by 322 persons

Where in the eukaryotic cell does replication transcription rna processing and translation occur?

Which of the following is true for all chemical reactions

Asked by admin @ 07/10/2021 in Chemistry viewed by 340 persons

Which of the following is true for all chemical reactions? The total mass of the reactants increase. The total mass of the products is greater than the total mass of …

Which of the following processes occurs during the calvin cycle

Asked by admin @ 04/10/2021 in Chemistry viewed by 295 persons

Which processes occurs during the calvin cycle?

Which of the following is a type of cell organelle

Asked by admin @ 30/09/2021 in Chemistry viewed by 312 persons

Which of the following is a type of cell organelle? O membrane cytoplasm DNA Nucleus

Which of the following usually occurs with a short circuit

Asked by admin @ 30/09/2021 in Physics viewed by 353 persons

4. Which of the following usually occurs with a short circuit? A. Most of the current will flow through one part of the circuit. B. All parts of the circuit …