Why is Gibbs free energy zero for phase changes at constant temperature and pressure?

Free of charge Power Scam or The Actual Deal?:
Question by : Why is Gibbs cost-free energy zero for phase changes at constant temperature and pressure?
I get that ΔG measures the spontaneity/capacity of a technique to do non-mechanical function, and that if
ΔG > , the reaction is not spontaneous
ΔG < 0, the reaction is spontaneous
ΔG = 0, the reaction is at equilibrium

but what exactly does equilibrium mean?
So why is Gibbs free energy zero for phase changes at constant temperature and

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Cheap Electric Guitars: Saving Room for Cheap Electric Guitar Gear

Cheap Electric Guitars: Saving Space for Low-cost Electric Guitar Gear
Article by Mike Danick


by Per Corell

Associated Low cost Electricity

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GeekBytes: Camera Obscura

Welcome to GeekBytes for November 16, 2011--your roundup of cool stuff delivered in bite-sized chunks.Today we have a definite photography theme. If you want a geeky-looking and useful iPhone case, or some cool camera hacks to test on your old setups, read on.

Don't forget, if you have a cool camera hack, let us know in the comments or via the tip line!

iPhone Case Helps Take Lomographic Photos

If you bought an iPhone 4S becuase of the improvements to the camera, and you also like fiddling with apps like Instagram, this new iPhone case may be right up your alley. The Holga Lens Filter case brings you the effects of the famous Lomography Holga camera, without breaking the bank. It's pretty cool to look at, too. Simply turn the reel and cover the iPhone lens with your desired filter, and you get instant old-school-style, colorful snaps.

Transform Unwanted Cameras Into a Digital Lomo One...

[Photo: Blue Ant Studio]Rather than disposing of all your unwanted cameras, why not take the best parts of each and mergethem into one? That's what Blue Ant Studio has done in creating this digital lomography camera. The camera, named DigiLomo, is incased in a classy wooden and aluminium frame, but its innards are from a five megapixel Vivitar Vivicam and Olympus OM series lens. The result is a selection of beautiful images that aren't far off from those you'll get from an original lomo camera. Check out Blue Ant Studio's blog for photo examples and the process of making DigiLomo.

... Or Into Handy Lights

[Photo: Jason Hull]Do you collect old cameras that don't really work but look beautiful? Jason Hull picked up a load of vintage cameras and added lights to them, making incredible night lights. Jason removed all of the camera's innards, and attached a light and plug. According to Jason, he doesn't transform any camera that's still in good working order, preferring to use those for, you know, taking photos. You can take a look at his camera nightlight collection on Flickr.

Lightbulbs Take a Step Back in Time

Speaking of lights, Panasonic has created an LED lightbulb that is not only efficient, but is cleverly designed--it just won a Good Design Award. Perhaps its success can be attributed to the fact the company went back to basics, Edison style, with the bulb's appearance. Of course, unlike a traditional bulb, it uses less energy as well as being able to withstand being turned on and off a lot more. It also uses clear glass allowing it to emit more light. Get more information on why this bulb is particularly cool and photos on DesignBoom.

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I want to power my house and a/c with alternative energy. I've been looking at magnet electricity generation.?

magnet energy Discover How To Cut Your Bills:
Question by arlene k: I want to power my house and a/c with option energy. I've been searching at magnet electricity generation.?
http://cgi.ebay.com/Cost-free-Energy-FROM-MAGNET-POWERED-GENERATOR-Electricity_W0QQitemZ330411182425QQcmdZViewItemQQptZLH_DefaultDomain_?hash=item4cee0a8959

Does anybody know if a business makes the generator? I don't want to have to make it myself.


Greatest answer:
Answer by jack_black_91TSC farm shop sells a modest 1

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CNN launches a new, more social iReport

CNN launches a new, more social iReport Posted by Natan Edelsburg on November 14, 2011

In August, CNN celebrated iReport?s 5th anniversary and announced a redesign of the site was in the works. The redesign is here with the goal to create the largest ?social network for news,? according to Lila King, Participation Director at CNN who heads up iReport.

Both individual iReporters profile pages and group pages have gotten major updates, making them easier to navigate the different pieces of content (photos, videos, etc) that a user has contributed to an ?assignment.? King also described her excitement around the fact the iReport will be less hidden at ireport.cnn.com and there will now be many more opportunities to contribute to an assignment while accessing content across all of CNN?s content.

Katie Hawkins-Gaar, a Senior Producer at CNN who works on the iReport team described three of the main new social features, which she said they?ll publish a blog post with more detail tomorrow:

Three of the biggest changes are the personalized homepage, which populates based on what groups you?re part of and which iReporters you?re following; the new story pages with BIG beautiful photos and video; and groups that are organized around topics where you can find out about new assignments based on what areas you?re interested in.

Here are a few major facts about the reach of CNN?s social news network:

• CNN?s iReport has more than 955,000 registered ?iReporters? (Source: iReport Server Log Data) with an average of 2.5 million unique users each month through September 2011. (Source: ComScore).
• iReport experienced its highest traffic day on June 11, 2008 with 2.8 million page views (Source: Omniture.)
• In its history the community has brought in 994,615 videos and photos with an average submission of 15,591 iReports each month on iReport.com. (Source: iReport server log data.)
• Reports are vetted for CNN with the same rules as any other kinds of footage from CNN staff, affiliates, stringers, story subjects and other parties.
• Typically CNN vets between 5 and 10 perce nt of the iReports that are received, though the number and percentage varies widely based on the news cycle.
• CNN has received an iReport submission from every country in the world.

Source: http://www.lostremote.com/2011/11/14/cnn-launches-a-new-more-social-ireport/

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Tesla: What is the free energy change associated with this particular design?

We Purchased It And Attempted It free energy Here's What We Located Out:
Question by Lexie: What is the totally free power change related with this particular style?
A galvanic cell is composed of these two half cells, with then regular reduction potentials shown:
Co2+(aq) + two e- ≡ Co(s) .......... -.28 volt
Cd2+(aq) + 2 e- ≡ Cd(s) .......... -.40 volt

The actual concentrations are:
Co2+(aq) = .00100 M, Cd2+ = .100 M.

What is the free energy change associated with this specific

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Astronomically Expensive Wedding Rings Are Made from Space Gold [Space]

Space Gold, as we all know, is the rarest and most-expensive form of precious metal known to ma—wait, whaddya mean it's just regular gold that's been shot into space? And they want how much?!?! More »

Source: http://feeds.gawker.com/~r/gizmodo/full/~3/MalKefWzwI8/astronomically-expensive-wedding-rings-are-made-from-space-gold

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