Answer: 72.4 kJ/mol
Explanation:
The balanced chemical reaction is,
The expression for enthalpy change is,
where,
n = number of moles
(as heat of formation of substances in their standard state is zero
Now put all the given values in this expression, we get
Therefore, the heat of formation of propane is 72.4 kJ/mol
3.6 moles required when each quantity of reactant completely reacts.
The ratio of the mole quantities of any two compounds present in a balanced chemical reaction is known as the mole ratio. A reaction's product yield can be predicted using mole ratios, as can the amount of reactant required to produce a specific amount of result.
The balanced chemical equation is :
(l) →
(g) +
(g)
Given is = 2.6 mol
As we see, 3 moles of reacts with 4 moles of
.
Therefore,
n( ) = n(
) ×
n( ) =
n( ) = 3.6 moles.
Therefores, 3.6 moles required when each quantity of reactant completely reacts.
Learn more about moles here;
#SPJ4
