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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: billy maize on August 31, 2009, 08:45:03 PM

Title: Thermodynamics
Post by: billy maize on August 31, 2009, 08:45:03 PM

Consider a mixture of air and gas in a cylinder with a piston. The original volume is 40cm^3. If the combustion of this mixturereleases 950J of energy, to what volume will the gases expand against a constant pressure of 650torr if all the energy of combustion is converted into work to push back the piston?

Title: Re: Thermodynamics
Post by: MrTeo on September 01, 2009, 01:36:12 AM

It's quite easy to do... what's the expression for the work done in an isobaric process? (if you don't know check on your textbook or here: http://en.wikipedia.org/wiki/Isobaric_process (http://en.wikipedia.org/wiki/Isobaric_process))