CHEM 1050 Study Guide - Final Guide: Equilibrium Constant, Jmol, Gibbs Free Energy

• School: University of Guelph
• Department: Chemistry
• Course: CHEM 1050
• Professor: Mario Monteiro

Document Summary

Question #21: a sample of ne(g) at 5. 00 atm pressure at 298 k is allowed to expand a piston from a starting volume of. 1. 00 l to a final volume of 2. 50 l. the external pressure on the piston is 1. 00 atm. Determine the work done by the gas during this expansion. Report the work done in units of l atm. (2 marks) w = pext v = (1. 00 atm) (2. 50 l 1. 00 l) = 1. 50 l atm. Key here is to remember that work depends on the external pressure, not that of the gas itself. Question #22: write down the chemical equation (including the phases) that corresponds to the formation of hgo(s) (2 marks) 2 hg(l) + o2(g) 2 hgo (s) Question#23: a 125 g stainless steel ball bearing (specific heat = 0. 500 j g-1 c-1) is heated to 525 c and then dropped onto a large block of ice (several kg) at 0 c.