A gas had a volume of 25.0 liters at 400.0 C and standard pressure. The gas was cooled until the volume was 12.5L at standard pressure. What was the final Celsius temperature of the gas?

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