Search found 10 matches

by Arianna_Mandelli_3C
Sun Mar 19, 2017 6:19 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018084

Re: Post All Chemistry Jokes Here

Q: What two elements do sheep yell out when happy?
A: BaH
by Arianna_Mandelli_3C
Sat Mar 11, 2017 3:55 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018084

Re: Post All Chemistry Jokes Here

Q: What did one ion say to the other?
A: I've got my ion you.
by Arianna_Mandelli_3C
Sat Mar 04, 2017 5:30 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018084

Re: Post All Chemistry Jokes Here

Q: Anyone know any jokes about sodium hydride?
A: NaH
by Arianna_Mandelli_3C
Sun Feb 26, 2017 4:31 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018084

Re: Post All Chemistry Jokes Here

Q: Why did the acid go to the gym?
A: To become a buffer solution!
by Arianna_Mandelli_3C
Sun Feb 19, 2017 7:30 pm
Forum: Student Social/Study Group
Topic: Post All Chemistry Jokes Here
Replies: 7606
Views: 1018084

Re: Post All Chemistry Jokes Here

What do you call Iron blowing in the wind?

Fe-breeze
by Arianna_Mandelli_3C
Sun Feb 12, 2017 10:12 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Cell Diagram Symbols
Replies: 4
Views: 452

Re: Cell Diagram Symbols

I think you're supposed to use the vertical lines when creating cell diagrams.
by Arianna_Mandelli_3C
Sat Feb 04, 2017 10:39 pm
Forum: Phase Changes & Related Calculations
Topic: Why does it take more energy for a phase change to occur from a liquid to gas than a solid to liquid?
Replies: 2
Views: 1227

Re: Why does it take more energy for a phase change to occur from a liquid to gas than a solid to liquid?

Within the phase change from solid to liquid, the bonds between atoms are merely loosened. In the phase change from liquid to gas, the bonds between atoms are completely broken. The phase change from liquid to gas requires more energy because the bonds must be completely broken for it to take place,...
by Arianna_Mandelli_3C
Sun Jan 29, 2017 1:26 pm
Forum: Gibbs Free Energy Concepts and Calculations
Topic: Spontaneous Reactions
Replies: 1
Views: 261

Re: Spontaneous Reactions

The equation of change in Gibbs free energy is delta G=delta H-T*delta S. A negative delta G value may result from a large negative delta H, which corresponds to a large increase in the entropy of the surroundings. A negative delta G value may occur even if delta H is positive, as long as the T*delt...
by Arianna_Mandelli_3C
Sun Jan 22, 2017 7:38 pm
Forum: Thermodynamic Systems (Open, Closed, Isolated)
Topic: Measuring Heat Transfer
Replies: 3
Views: 314

Re: Measuring Heat Transfer

The equation with the m in it will give you the energy supplied as heat to the substance, and the equation with the n in it will give you the molar heat capacity of a substance. The m refers to mass while the n refers to moles. You'll know which equation to use based on which one (grams or moles) th...
by Arianna_Mandelli_3C
Sun Jan 15, 2017 6:53 pm
Forum: Phase Changes & Related Calculations
Topic: Enthalpy of Phase Changes
Replies: 2
Views: 263

Enthalpy of Phase Changes

Would the value of enthalpy of condensation of a substance be the same value of the enthalpy of vaporization except with the opposite sign?

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