Answer to Question #202975 in General Chemistry for Lauren Veitz

Question

Ca(HCO3)2 (s) --><-- CaO(s) + 2CO2(g) + H2O(g) DHrxn<0

Increasing the temperature of the above reaction will

a. increase the pressure in the tank

b. decrease the amount of Ca(HCO3)2(s) in the flask

c. increase the concentration of CO2(g)

d. decrease the amount of gas in the flask

Answer 1

The correct option is d, because with a decrease in the concentration of gas (CO2), the reaction will go towards the reaction products, which means that the temperature will also increase. In other variants, the reaction will go in the opposite direction.