A mixture at equilibrium is heated. Which of the two reactions is then favoured?

1. Le Chatelier's principle says the equilibrium shifts so as to reduce the effect of any change forced on it. 2. Raising the temperature is a change the system will try to oppose by cooling itself. 3. The reaction that takes energy in is the endothermic one. 4. So heating a mixture at equilibrium favours the endothermic reaction. 5. Cooling the mixture would do the opposite and favour the exothermic reaction instead. _Source: Siyavula Physical Sciences Grade 12 (Everything Science, CC BY 4.0), Chapter 8: Chemical equilibrium_