Consider the following balanced thermochemical equation for the decomposition of the mineral magnesite:
(a) Is heat absorbed or released in the reaction?
(b) What is [d]Hrxn for the reverse reaction?
(c) What is [d]H when 3.30 mol of CO2 reacts with excess MgO?
(d) ‘What is 1115' when 33.5 g of CO: reacts with excess MgD‘?