Search found 12 matches

by gohar_mkrtchyan_2J
Sun Feb 12, 2017 7:24 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: kJ or kJ/mol?
Replies: 2
Views: 226

Re: kJ or kJ/mol?

we measure both enthalpy and Gibbs free energy in kJ mol-1 (kilojoules per mole).
by gohar_mkrtchyan_2J
Sun Feb 12, 2017 7:17 pm
Forum: Phase Changes & Related Calculations
Topic: Quiz 1 Answers
Replies: 2
Views: 405

Re: Quiz 1 Answers

one of the TA's has a review session tomorrow in the CS76 lecture hall at 6pm, so you can go ask any questions about the quiz there.
by gohar_mkrtchyan_2J
Sat Feb 04, 2017 8:30 pm
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Units for Bond Enthalpy Questions
Replies: 2
Views: 319

Re: Units for Bond Enthalpy Questions

I think bond enthalpies are generally just expressed in units of kJ mol-1.
by gohar_mkrtchyan_2J
Sun Jan 22, 2017 9:48 pm
Forum: Significant Figures
Topic: Sig Figs
Replies: 8
Views: 768

Re: Sig Figs

0.00021 has two significant figures: 2 and 1 (the zeros before the 2 are not significant).
trailing zeros in a number containing a decimal point are significant (ex: 32.2100 has six sig figs.: 3, 2, 2, 1, 0, and 0).
by gohar_mkrtchyan_2J
Mon Jan 16, 2017 1:24 am
Forum: Reaction Enthalpies (e.g., Using Hess’s Law, Bond Enthalpies, Standard Enthalpies of Formation)
Topic: Hess's Law
Replies: 3
Views: 372

Re: Hess's Law

you should also know that when you reverse an equation, you have to reverse the sign on the enthalpy value too.
by gohar_mkrtchyan_2J
Thu Sep 29, 2016 9:42 pm
Forum: Student Social/Study Group
Topic: Sunset Village Study Group
Replies: 17
Views: 1478

Re: Sunset Village Study Group

I want to join! I'm in C3

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