To solve such we need to have concept of spontaneity. The terms "feasible" and "likely" are both used to describe spontaneous processes. Therefore, second reaction will occur spontaneously.
What is spontaneity?The word "spontaneity" refers to a process's viability. A process is referred to as spontaneous if it can occur either on its own or as the result of some initiation under a certain set of circumstances. In other terms, a spontaneous process is one that may happen on its own, without any outside intervention.
For a reaction to be spontaneous, the value for ΔG should be negative and for that cell potential should be positive value according to following equation.
ΔG=-nFE
ΔG = Gibbs's free energy
E= cell potential
F= 96500
n= number of electron
Therefore, second reaction will occur spontaneously.
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Voltaic cells are able to provide energy in the form of electricity because the potentials of their redox reactions permit electrons to flow
spontaneously.
true or false
Answer: True. Voltaic cells, also known as galvanic cells, are able to provide energy in the form of electricity because the potentials of their redox reactions permit electrons to flow spontaneously. Redox reactions involve the transfer of electrons from one species to another, and the flow of electrons through a circuit can be used to do work, such as powering an electric motor or a lightbulb. The potential difference between the two half-cells in a voltaic cell is called the cell potential, and it determines the direction and magnitude of the flow of electrons.
Explanation:
the equilibrium constant of a redox reaction can be calculated from the standard reduction potentials of involved redox couples at given temperature.
The Nernst equation and the link between the standard cell potential and free energy can be used to determine the equilibrium constant of the redox process in an electrochemical cell.
The ratio of the product concentration to the reactant concentration is the equilibrium constant. a fixed value for a certain reaction at a specific temperature. The letter "c" denotes the expression of the equilibrium constant in terms of concentrations.
The standard cell potential, temperature, reaction quotient, and the cell potential of an electrochemical cell are all related by the Nernst equation. The Nernst equation can be used to determine the cell potentials of electrochemical cells even under unusual circumstances.
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The density of an unknown element in the gaseous state is 1.60 g at 300 K and 1 atm. Which of the following could be the element?
a. He
b. Ne
c. Ar
d.O2
e. Cl2
using curved arrow notation, write lewis acid/base equations for each of the following. remember to place formal charge on the appropriate atoms. a. aici3- b. phyp: bf3 bh3
AlCl 3 is Lewis base,PH3 is Lewis base,BH3 is Lewis acid ,BF3 is Lewis acid.
The crucial step is AlCl 3 accepting a chloride ion lone-pair to generate AlCl 4 and the highly acidic, or electrophilic, carbonium ion. Lewis bases: RCl +AlCl 3 → R + + AlCl 4−, etc. [ edit] The highest occupied molecular orbital (HOMO) of an atomic or molecular species that is strongly localised is known as a Lewis base.Lewis acid borane (BH3) has three hydrogen atoms and one boron atom in its molecule. The Lewis structure of borane features a single connection connecting each hydrogen atom to boron (BH3). Only three bonds surround the boron atom, and there are no lone pairs on the atom itself. We will learn how to draw the BH3 Lewis structure in this lesson.Only six electrons orbit the boron atom, according the Lewis structure of BF3. As a result, the boron atom's octal is incomplete. Borane BF3 is therefore regarded as a Lewis acid.A highly poisonous gaseous chemical is phosphorus. Three sigma bonds and one lone pair are present around the phosphorus atom in the Lewis structure of phosphine (PH3). Hydrogen and phosphorous atoms have no charges. The trigonal pyramidal shape of PH3 is a fundamental shape.
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Identify the options below that are results of decreasing the temperature of a system that includes an exothermic reaction in the forward direction. A. The concentration of the reactants increases. B. The concentration of the products increases. C. The equilibrium constant decreases. D. The equilibrium shifts toward the products.
If the reaction is exothermic as described, a rise in temperature will thus trigger the opposite reaction, which will result in a decrease in the amount of the products and an increase in the number of reactants. The reverse outcome will occur if the temperature is lowered.
B. The concentration of the products increases.
A reaction is defined as exothermic if the overall standard enthalpy change (H) is negative. Exothermic processes typically produce heat. Exergonic reaction, which the IUPAC defines as "... a reaction for which the overall standard Gibbs energy change G is negative," is frequently mistaken with the phrase.
Because "H" contributes significantly to "G," a strongly exothermic process is typically also exergonic. Exothermic and exergonic chemical reactions make up the majority of the impressive demonstrations in schools.
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Consider the following reaction at 276 K.
1 A + 2 B → C + D
where rate = rate=k[A][B]2. An experiment was performed for a certain number of seconds where [A]o = 0.000847 M and [B]o = 1.11 M. A plot of ln[A] vs time had a slope of -9.43. What will the rate of this reaction be if a new experiment is preformed when [A] = [B] = 0.779 M?
1 A + two C and d → C + S t where rate=k[A][B][rate] 2. An experiment with [A]o = 0.000847 T s as well as [B]o = 1.11 M was run for a predefined number of seconds. The slope of a ln[A] vs. grown steadily was -9.43. rate of reaction is 3.62m/s
Slope and slant both refer to an incline up from a reference surface or line that is generally straight. The ground slopes (either upward or straight down) sharply here. To slope is to slope vertically in an ambiguous path A line's steepness could be determined by looking at its slope. Altitude is calculated mathematically as "rise over run."
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For the reaction of X (represented by circles) and Y (represented by squares), the rate law has been determined to be: rate=k[X][Y]^2.Which of the following will produce the fastest rate for the reaction?ABCD
Ozone decomposes to oxygen according to the equation 2O₃(g)⟶3O₂(g). Create the equation that ties the rate expressions for this reaction to the creation of oxygen and the disappearance of O₃.
Given that there are more reactants in a given volume of space, increasing the concentration of reactants improves the likelihood that they will collide in the proper direction. As a result, the reactions rate would increase if the reactants were concentrated more. more often with each other. As a result, the reaction progresses more quickly as the temperature rises. Since the molecules will have less kinetic energy, travel more slowly, and collide less frequently as a result of a lower temperature, the rate of reaction will also be reduced.
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Which if these options best describes the diagnostic cleavage that is typical of the mica group of minerals (which includes muscovite and bietet A) Three perpendicular cleavage planes B) Two cleavage planes intersecting at 90° C) Two cleavage planes intersecting at 120 D) A single planar cleavage
D ) The answer that best depicts the diagnostic cleavage that is typical of the mica group of minerals which include muscovite and bietet is a single, planar cleavage .
Cleavage is the splitting of minerals along natural planes of weakness
When there is only one cleavage plane, a single, planar cleavage known as the basal or pinacoidal cleavage takes place. cleaved at the base of the graphite. Mica (like muscovite or biotite) has basal cleavage, that's why mica can be peeled into thin sheets.
So single planar cleavage is answer of this question.
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with reference to compound a below, label each compound as an identical molecule, an isomer, a resonance structure, or neither.
Label for each of the compounds given in the question are: 1) Isomer, 2) Isomer, 3) Resonance Structure, 4) Isomer 5) Neither.
A group of two or more Lewis structures known as resonance structures describe the electronic bonding of a single polyatomic species, including fractional bonds and fractional charges. The number of electrons in resonance structures should be constant; do not add or subtract any electrons. (Count the electrons to determine their number). Every resonance structure complies with the standards for writing Lewis Structures. Structure hybridization must be constant. By cyclically moving elections, it is possible to depict the two resonance configurations of the benzene ring. Multiple resonance structures can be found in conjugated double bonds.
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Find the volume, in mL, of an object whose density is 400 g/mL and has a mass of 600
mg.
The volume of the object is 1.5ml.
What is the volume of an object?This refers to the space occupied within the boundaries of an object in three-dimensional space. It is also called the capacity of the object.
In the question:
ρ = 400 g/mL
m = 600 mg
v = ?
Formular for calculating density ρ:
ρ = m/v
Where,
ρ= Density of the object
m= Mass of the object
v = volume of the object
Were are given the values of density and mass in the question. We are to calculate the volume.
Makinig v subject of the formular we have:
v = m/ρ
v = 600 mg
400 g/mL
v = 1.5ml
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High-purity benzoic acid (C6H₂COOH; AHxn for combustion = -3227 kJ/mol) is used as a standard
for calibrating bomb calorimeters. A 1.221-g sample burns in a calorimeter (heat capacity = 1365 J/°C)
that contains exactly 1.240 kg of water. What temperature change is observed?
°℃
According to the given statement 5 °C temperature change is observed.
How does a calorimeter function and what is it?The variation in heat is measured by a calorimeter. A metal water container placed above an exhaust gases serves as the basic component of a calorimeter. The amount of water's temperature change is measured using a thermometer.
Briefing:The calorimeter burns a 1.221g sample.
The calorimeter contains 1.240 kg of water .
The calorimeter has a heat capacity of 1365 j/°C.
∆H rxn = -3227 kj/mol of benzoic acid
Given: 1.221 g is the mass of the benzoic acid
Benzoic acid's molecular weight is 122.12 g/mol.
122.12 g benzoic acid = 1 mol
1.221 g benzoic acid =1.221/122.12= 0.0099 moles
When burned, 1 mol of benzoic acid releases 3227 kj of energy.
Burning 0.0099 moles of benzoic acid produces energy
= 3227kj×(0.0099mols)/1 mol =32.2647 kj =32264.7 j
The calorimeter absorbed thermal energy
= 1365 j/C ×T
Water absorbs heat
= m× C× T
= 1240 g( 4.18 j/gC ) ×T
= 5183.2j/C×T
the total amount of heat absorbed
= 1365T + 5183.2T
=6548.2T
6548.2T=32264.7
T= 4.92 deg.C
T= 5 °C
The result is a 5 °C temperature change.
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