## Search found 6 matches

Sat Mar 12, 2016 9:21 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Heat Capacity Comparison
Replies: 1
Views: 236

### Re: Heat Capacity Comparison

Ethane has 2 more hydrogens attached to it than ethene and therefore would be a more complex molecule. Since it is more complex, it would then have a higher heat capacity.
Sat Mar 05, 2016 9:20 pm
Forum: *Alkanes and Substituted Alkanes (Staggered, Eclipsed, Gauche, Anti, Newman Projections)
Topic: Anti Conformation
Replies: 2
Views: 450

### Re: Anti Conformation

Yes, that molecule is in its anti conformation because it is staggered at 180 degrees
Sat Feb 27, 2016 9:48 pm
Forum: *Free Energy of Activation vs Activation Energy
Topic: Reactant and Products Free Energy
Replies: 2
Views: 344

### Re: Reactant and Products Free Energy

Looking at the equation $\Delta G = -RTlnK$ we can see that $\Delta G$ is negative when K>1 and is positive when K<1
Sat Feb 20, 2016 10:32 pm
Forum: Galvanic/Voltaic Cells, Calculating Standard Cell Potentials, Cell Diagrams
Topic: Standard Cell Potential Significant Figures on Midterm
Replies: 3
Views: 512

### Re: Standard Cell Potential Significant Figures on Midterm

Because .80V and .40V is the same as 0.80V and 0.40V, which is 3 significant figures
Sat Jan 23, 2016 7:49 pm
Forum: Concepts & Calculations Using First Law of Thermodynamics
Topic: Work
Replies: 2
Views: 360

### Re: Work

When the system releases 346 kJ of heat, q=-346 kJ Since the internal energy decreases by 125 kJ, \Delta U = -125 kJ Internal energy is related to heat and work by: \Delta U = q + w When you substitute the value for internal energy and heat, you get: -125 kJ = -346 kJ + w Add 346 kJ to both sides: +...
Fri Jan 15, 2016 11:38 pm
Forum: Heat Capacities, Calorimeters & Calorimetry Calculations
Topic: Heat released in exothermic reaction?
Replies: 1
Views: 235

### Re: Heat released in exothermic reaction?

According to the first law of thermodynamics: the internal energy of an isolated system is constant. And since heat and work are both ways to transfers energy, we can see that \Delta U(internal energy)=q(heat) + w(work) . So if no work is done on the the system or by the syst...