Search found 30 matches

by Harsha 1J
Sun Mar 18, 2018 8:33 pm
Forum: *Cycloalkanes
Topic: SN2
Replies: 1
Views: 810

SN2

How many steps are there in an SN2 reaction.
by Harsha 1J
Sun Mar 18, 2018 8:24 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Conductor
Replies: 1
Views: 160

Re: Conductor

When all the substances are aqueous, so you need a solid conductor. You usually place it on the end.
by Harsha 1J
Sun Mar 11, 2018 11:57 pm
Forum: Kinetics vs. Thermodynamics Controlling a Reaction
Topic: Equilibrium constant
Replies: 3
Views: 299

Equilibrium constant

What does the equilibrium constant equal to for a multi-step reaction?
by Harsha 1J
Sun Mar 11, 2018 11:52 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Ways to approach reaction mechanism
Replies: 2
Views: 126

Re: Ways to approach reaction mechanism

Could someone also explain the pre-equilibrium method.
by Harsha 1J
Sun Mar 11, 2018 11:50 pm
Forum: Arrhenius Equation, Activation Energies, Catalysts
Topic: Adsorption
Replies: 3
Views: 151

Re: Adsorption

Adsorption is the adhesion of molecules on to the surface of something, and they basically form a film over the surface of the catalyst.
by Harsha 1J
Sun Mar 04, 2018 10:04 pm
Forum: Reaction Mechanisms, Reaction Profiles
Topic: Rate determining reaction
Replies: 3
Views: 144

Rate determining reaction

Do we need to know the rate determining step and the normal step of a certain reaction?
by Harsha 1J
Sun Mar 04, 2018 9:55 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: oxidizing power
Replies: 2
Views: 127

Re: oxidizing power

The higher their reducing potentials, the stronger their oxidizing power.
by Harsha 1J
Sun Mar 04, 2018 9:53 pm
Forum: General Rate Laws
Topic: Rate equations
Replies: 3
Views: 161

Rate equations

Do we need to know the derivations for all the rate equations?
by Harsha 1J
Sun Mar 04, 2018 9:49 pm
Forum: First Order Reactions
Topic: half-life
Replies: 2
Views: 135

Re: half-life

This is because the half-life of a first order reaction is a constant.
by Harsha 1J
Fri Feb 23, 2018 11:37 am
Forum: First Order Reactions
Topic: Reaction order
Replies: 4
Views: 194

Reaction order

How do you determine the order of a certain reaction?
by Harsha 1J
Thu Feb 22, 2018 10:39 am
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Electrolytic Cells
Replies: 1
Views: 117

Re: Electrolytic Cells

Yes, it is possible to produce gas in a electrolytic cell and the gas is usually produced at the anode.
by Harsha 1J
Thu Feb 22, 2018 10:36 am
Forum: Balancing Redox Reactions
Topic: Gibbs free energy of half reactions
Replies: 4
Views: 214

Gibbs free energy of half reactions

Can we add the Gibbs free energy of the half reactions to find the Gibbs free energy of the final reaction.
by Harsha 1J
Sun Feb 18, 2018 4:26 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Electrode potential
Replies: 1
Views: 129

Electrode potential

Are all electrode potentials negative?
by Harsha 1J
Sun Feb 18, 2018 4:22 pm
Forum: Work, Gibbs Free Energy, Cell (Redox) Potentials
Topic: Nernst equation
Replies: 4
Views: 216

Nernst equation

What is the Nernst equation?
by Harsha 1J
Sat Feb 10, 2018 7:48 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Standard potential [ENDORSED]
Replies: 1
Views: 56

Standard potential [ENDORSED]

Does the electrode standard potential depend on the molar equation?
by Harsha 1J
Sat Feb 10, 2018 7:44 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Oxidation
Replies: 4
Views: 115

Oxidation

Does oxidation take place at the anode or cathode in a galvanic cell?
by Harsha 1J
Mon Feb 05, 2018 9:34 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Delta G equal Zero [ENDORSED]
Replies: 4
Views: 159

Re: Delta G equal Zero [ENDORSED]

No, I don't thing so. When delta G is zero is just means that there are equal amounts of products and reactants.
by Harsha 1J
Fri Feb 02, 2018 10:19 am
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Exergonic [ENDORSED]
Replies: 5
Views: 165

Exergonic [ENDORSED]

What are some examples of exergonic reactions?
by Harsha 1J
Fri Feb 02, 2018 10:15 am
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Micro states
Replies: 5
Views: 188

Micro states

What are microstates?
by Harsha 1J
Sun Jan 28, 2018 5:14 pm
Forum: Concepts & Calculations Using Second Law of Thermodynamics
Topic: Boltzmann Equation Clarification
Replies: 3
Views: 111

Re: Boltzmann Equation Clarification

The equation shows how the distribution of molecules, atoms or ions in their various energy levels depend on the temperature of the system.
by Harsha 1J
Sun Jan 28, 2018 5:09 pm
Forum: Entropy Changes Due to Changes in Volume and Temperature
Topic: Entropy [ENDORSED]
Replies: 4
Views: 167

Entropy [ENDORSED]

Is entropy a state function?
by Harsha 1J
Sat Jan 20, 2018 11:49 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Heat Capacity Properties
Replies: 3
Views: 117

Re: Heat Capacity Properties

Since the definition of heat capacity is the amount of heat required to change the temperature of one unit of mass of a substance by one degree. It is therefore an intensive property because it has mass in its units. Since specific heat is always measured for one unit of mass of the substance the ma...
by Harsha 1J
Thu Jan 18, 2018 8:24 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Work Equation
Replies: 4
Views: 227

Re: Work Equation

If you are putting work into the system (say pressing a piston into a cylinder containing a gas at a given pressure), the volume is becoming smaller, so ΔV is negative. The negative of the pressure times a negative ΔV is a positive value, which matches with the sign convention for putting work in.
by Harsha 1J
Sat Jan 13, 2018 12:22 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Bonds Formed Exothermic
Replies: 2
Views: 106

Re: Bonds Formed Exothermic

energy is released when bonds are formed because as the two or more atoms become one the total entropy of the system is reduced and also as the atoms come together the electron of one atom is attracted to the nucleus of the other atom and this results in a release of energy and a molecule which has ...
by Harsha 1J
Thu Jan 11, 2018 9:49 am
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Heat Capacity: molar versus specific
Replies: 3
Views: 166

Re: Heat Capacity: molar versus specific

specific heat capacity is the amount of heat needed to raise the temperature of 1 gram of a substance by 1 K, whereas molar heat is the amount of heat needed to raise the temperature of 1 mole of a substance by 1 k.
by Harsha 1J
Thu Jan 11, 2018 9:27 am
Forum: Phase Changes & Related Calculations
Topic: General Question
Replies: 3
Views: 192

Re: General Question

q is the amount of heat transferred to a system, whereass H is a measure of the potential energy in the system

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