Search found 8 matches

by 904608194
Thu Mar 10, 2016 7:22 pm
Forum: *Identifying Primary, Secondary, Tertiary, Quaternary Carbons, Hydrogens, Nitrogens
Topic: Common naming and IUPAC naming
Replies: 1
Views: 690

Re: Common naming and IUPAC naming

Unless the question directly specifies, you can use whichever.
by 904608194
Tue Mar 01, 2016 1:56 pm
Forum: *Complex Reaction Coordinate Diagrams
Topic: Determine which reaction is faster
Replies: 2
Views: 867

Re: Determine which reaction is faster

I remember one of the substitutes saying that we should look at the number of bonds breaking to determine which TS will have the higher energy barrier, but what if there are the same amount of bonds breaking in both of them?
by 904608194
Thu Feb 18, 2016 9:38 am
Forum: Second Order Reactions
Topic: Multi-Reactant Concentration Changes
Replies: 1
Views: 411

Multi-Reactant Concentration Changes

In lecture last week it was said to plot [B] vs time, ln[B] vs time, and then 1/[B] vs time until you get a linear slope in order to determine the order of B. What if you get a straight line for more than one of these?
by 904608194
Tue Feb 09, 2016 8:56 pm
Forum: Calculating Work of Expansion
Topic: Deriving Formula on Midterm
Replies: 1
Views: 323

Deriving Formula on Midterm

On the midterm, can we jump straight to using w=-nRT(ln[V2/V1]) or do we have to briefly show the steps of its derivation from the formulas on the reference table?
by 904608194
Thu Jan 28, 2016 7:31 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Question 8.33
Replies: 1
Views: 281

Question 8.33

The question states to predict the contribution of heat capacity made by molecular motions for each of the following atoms and molecules:
(a) HCN
(b) C2H6
(c) Ar
(d) HBr

How do we predict this? What is the difference between them?
by 904608194
Fri Jan 22, 2016 7:58 pm
Forum: Phase Changes & Related Calculations
Topic: Delta H Nought vs Delta H
Replies: 3
Views: 1243

Re: Delta H Nought vs Delta H

Both of these values would be expressed in kj/mol
by 904608194
Sat Jan 16, 2016 7:20 pm
Forum: Phase Changes & Related Calculations
Topic: Steam Burns vs. Water Burns
Replies: 6
Views: 3329

Steam Burns vs. Water Burns

I'm still confused about why steam burns are worse than water burns. Can someone explain this to me again? I am very interested in this application of thermochemistry.
by 904608194
Wed Jan 06, 2016 10:10 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Enthalpy Calculation References
Replies: 2
Views: 437

Enthalpy Calculation References

If we are ever asked to calculate the change in enthalpy during a reaction, how do we know what enthalpy is required to break/ form a bond? Will there be a list or table of them?

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