CHE 1302 Lecture Notes - Lecture 6: Joule

• School: Baylor University
• Department: Chemistry
• Course: CHE 1302
• Professor: Mc Grath

Document Summary

The volume of the container is shifts left as cl2(g) reacts decreased. The temperature is raised shifts left for an exothermic reaction: mno2(s) is added no effect from adding a pure solid. Catalyst is removed no change for a system at equilibrium: water is added shifts left because [hcl(aq)] and. [mncl2(aq)] both decrease but remember the form of kc expression: Summary: results of a perturbation to an equilibrium system nreactants = total # mol of gaseous reactants nproducts = total # mol of gaseous products. Add pure solid or pure liquid nreactants < nproducts. Decrease volume of container (same as increasing pressure) { nreactants > nproducts (same as decreasing pressure) { nreactants > nproducts. Increase temperature exothermic ( h < 0) to the left endothermic ( h > 0) to the right . Decrease temperature exothermic ( h < 0) to the right endothermic ( h > 0) to the left .