Search found 9 matches
- Sat Mar 18, 2017 6:39 pm
- Forum: *Alcohols
- Topic: difference between hydroxy and alcohol
- Replies: 2
- Views: 836
Re: difference between hydroxy and alcohol
I think it has to do with where the OH is attached. The I think OH on a main carbon is an alcohol. EG: Carboxylic acid has an OH, but also has another O attached to the C.
- Sun Mar 12, 2017 7:41 pm
- Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
- Topic: Staggered vs. Eclipsed
- Replies: 2
- Views: 338
Re: Staggered vs. Eclipsed
Yes. In the eclipsed formation, the H atoms in an organic molecule are closer together. Electrostatics dictates that this is less favorable, and thus requires energy to achieve this orientation.
- Fri Mar 03, 2017 2:50 pm
- Forum: *Calculations Using ΔG° = -RT ln K
- Topic: Kinetics in organic rxns
- Replies: 1
- Views: 589
Kinetics in organic rxns
I was just a little confused about to what extent kinetics of organic reactions will be discussed on the quiz next week. I know that the Arrhenius equation and activation energy will be one of the topics discussed, but I remember hearing that there would be content about the kinetics of organic rxns...
- Wed Feb 22, 2017 7:26 pm
- Forum: Arrhenius Equation, Activation Energies, Catalysts
- Topic: Activation energy
- Replies: 3
- Views: 361
Re: Activation energy
The reaction with the higher activation energy essentially requires more ambient energy to initiate the reaction. Changing the temperature means changing the amount of ambient energy, so a rxn with a high activation energy is initiated more easily when there is ample energy (higher temp). A rxn with...
- Mon Feb 13, 2017 5:19 pm
- Forum: Appications of the Nernst Equation (e.g., Concentration Cells, Non-Standard Cell Potentials, Calculating Equilibrium Constants and pH)
- Topic: Faraday Constant
- Replies: 3
- Views: 389
Faraday Constant
For the Value of F in the Nernst equation and any other application of the Faraday constant, is it scaled in response to the number of electrons being transferred in the redox reaction in question? Or is it always the value of 96,485 C/mol?
- Wed Feb 01, 2017 10:03 pm
- Forum: Thermodynamic Definitions (isochoric/isometric, isothermal, isobaric)
- Topic: Adiabatic vs Isothermal
- Replies: 2
- Views: 520
Re: Adiabatic vs Isothermal
Based on that definition, an adiabatic process is by its very nature isothermal, as a process that involves no heat exchange would experience a constant temperature. I don't believe this would affect calculations, as the isothermal designation is the most common.
- Thu Jan 26, 2017 6:14 pm
- Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
- Topic: Molar or Specific heat
- Replies: 2
- Views: 307
Re: Molar or Specific heat
Usually only one will be given to you, but if there is some ambiguity, You usually can tell by the amount thats given in the problem. (I.E. if they give a smaller amount, use specific heat capacity, or if they give you one mol, it'd be molar heat capacity.
- Fri Jan 20, 2017 11:34 pm
- Forum: Calculating Work of Expansion
- Topic: entropy equations
- Replies: 3
- Views: 326
Re: entropy equations
I don't think it means volume is equal to work, but work is measured in the change in the volume of a system (the work done by the system or the work done to a system). I believe it is related to the relation q=-w, which is equal to nRT ln V2/V1. I believe thats how the W2/W1 becomes the V2/V1 in th...
- Thu Jan 12, 2017 9:56 pm
- Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
- Topic: Standard Enthalpy of Formation
- Replies: 2
- Views: 384
Re: Standard Enthalpy of Formation
It is my understanding that standard enthalpies of formation can have both negative and positive values because it indicates the heat involved in the reaction that forms a substance. A negative enthalpy of formation implies that the formation releases heat, and a positive enthalpy of formation impli...