evaporation This is the chemical reaction for water heating: H2O (liquid) + heat ---> H20 (gas) This is an endothermic reaction, meaning that by adding heat, it will shift the reaction towards the products, thus making more H2O gas. It is simply a phase change.

Right

Right

yes it is a endothermic reaction

Water gas is a mixture of CO and H2 and H2O. Over oxide catalysts the "water gas shift" reaction occurs that removes the CO by reacting it with water to produce CO2 and more H2.

CO + H2O -> CO2 + H2