CHEM 1002 Study Guide - Midterm Guide: Joule, Reaction Rate Constant, Reaction Rate
16 May 2014
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Answer each of the six questions with a few sentences or equations where necessary. (5 marks each) For each process, indicate whether d ho and d so are positive (+) or negative (-) or close to zero (0), and at what temperatures (high, low, all, or none) d go is negative. Co2(g) + 2 h2o(g) ch4(g) + 2 o2(g) O2(g) + o(g) o3(g) (g) + h2o(l) br- Cacl2(s) ca2+ (g) + 2 cl- (g) The reaction 2 n2o5(g) 4 no2(g) + o2(g) is found to be first order in [n2o5(g)]. Only that the mechanism is more complex, [2] or more specifically that the rate limiting step is first order in [n2o5]. For the reaction o2(g) + o(g) o3(g), which direction will the equilibrium shift (left, right or no change) if: (a) the volume is decreased at constant temperature. Right [1] (b) the temperature is increased at constant volume (c) some o(g) is removed.
