hugh1 Posted June 14, 2011 Posted June 14, 2011 Hi guys and girls, new here, been pulling my hair out trying to work out the answer to this one with nothing but a physics gcse which was a rather long time ago, i'm feeling a little pickled! I'm probably about to set myself up to look like an idiot but here goes, quick simple question: In an enclosed vessel, what pressure is required to increase the temperature of the air within the vessel to 200 degree Celsius? The other thing i might as well drop in here for anyone with the knowhow, how realistic is it to create whatever pressure that is required, by hand? Just trying to formulate a concept design, i'd hire someone with the education if i had the money, but alas, that is not how this world works. Any help muchly appreciated Hugh
mississippichem Posted June 14, 2011 Posted June 14, 2011 On 6/14/2011 at 7:03 PM, hugh1 said: Hi guys and girls, new here, been pulling my hair out trying to work out the answer to this one with nothing but a physics gcse which was a rather long time ago, i'm feeling a little pickled! I'm probably about to set myself up to look like an idiot but here goes, quick simple question: In an enclosed vessel, what pressure is required to increase the temperature of the air within the vessel to 200 degree Celsius? Use the combined gas law: \frac{p_1 V_1}{T_1} = \frac{p_2 V_2}{T_2} So at constant volume we have \frac{p_1}{T_1} = \frac{p_2}{T_2} .
hugh1 Posted June 14, 2011 Author Posted June 14, 2011 Hi, thanks for that info MC, i've cracked open a beer so i think i'll wait till tomorrow to read up on that law, right now it is all double dutch my physics lessons and such focused on how far a ruler would slide per cm of stretch on a rubber band, this is rather beyond my education
John Cuthber Posted June 14, 2011 Posted June 14, 2011 By all means look that up, but it won't help. The even more scary maths you need is here. http://www.animations.physics.unsw.edu.au/jw/Adiabatic-expansion-compression.htm
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