In small groups, think of ten ways we witness substances change in state every day. Present your findings to the class. Remember that condensation and melting are examples of changes of state. Condensation is the point of change from a gas to a liquid. Melting is the point of change from a solid to liquid. Evaporation is also a way that liquids change to gases.​

Consider the following reaction at equilibrium. 2co2 (g) 2co (g) + o2 (g) h° = -514 kj le châtelier's principle predicts that the equilibrium partial pressure of co (g) can be maximized by carrying out the reaction a. at high temperature and high pressure b. at high temperature and low pressure c. at low temperature and low pressure d. at low temperature and high pressure e. in the presence of solid carbon