Enthalpy of a reaction

Chemistry Level 2

The above shows the enthalpy change in the combustion reaction of methane (CH\(_4\)) during the course of a reaction. Which of the following statements are correct? (The molecular weight of CH\(_4\) is \(16.\))

a) This reaction is an exothermic reaction.

b) The temperature of surroundings goes down when the reaction occurs.

c) The enthalpy of reactants is greater than that of products.

d) The magnitude of enthalpy change when \(8\) g of CH\(_4\) is completely combusted is \(890.8\) kJ.


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