012109_lecture - Gas Rxn Stoichiometry Effusion/Diffusion...

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anuary 21 t 2009 January 21 st , 2009 •Gas Rxn Stoichiometry •Effusion/Diffusion Eff /D ff •Real Gases
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CO 2.0 L H 2 0.50 L 3.0 atm 2.0 atm CO (g) + 2 H (g) -> CH OH (g) at 0C 2 3 What is the pressure of CH 3 OH produced? hat is the total pressure in the vessel What is the total pressure in the vessel after the reaction?
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CO (g) + 2 H 2 (g) -> CH 3 OH (g) at 0C Pressure of CH 3 OH after reaction: •M o l s C O a n d H 2 -> limiting reactant -> mols CH 3 OH -> pressure CH 3 OH PV=nRT, n=PV/RT •n CO =(3.0 atm*2.0 L)/(0.08206 L atm/mol K * 273 K)=.268 mol – This amount of CO would produce 0.268 moles CH3OH •n H2 =(2.0 atm*0.50 L)/(0.08206 L atm/mol K * 273 K)=.0446 mol – This amount of H 2 would produce 0.0223 moles CH 3 OH-Liming reactant •P H3OH =nRT/V=(0.0223 moles * 0.08206 L atm/mol K * 273 K)/ 2.5 L=0.20 atm CH3OH Total pressure after reaction: O was the non miting reactant some will be leftover CO was the non-limiting reactant, some will be leftover
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This note was uploaded on 04/15/2009 for the course LB 171L taught by Professor All during the Spring '08 term at Michigan State University.

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012109_lecture - Gas Rxn Stoichiometry Effusion/Diffusion...

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