Solid urea, (NH2)2CO, burns to give CO2,N2, and liquid H2O. Its heat of combustion is -632.2 kJ/mol. Balance the equation for combustion of urea, and calculate the heat generated per mole of H2O formed. (Enter in kJ.)
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Sure, let's balance the equation first:
(NH2)2CO + O2 -> CO2 + N2 + H2O
Now, let's calculate the heat generated per mole of water formed:
The coefficient of H2O in the balanced equation is 1. Since the heat of combustion is -632.2 kJ/mol, the heat generated per mole of H2O formed is also -632.2 kJ/mol.
So, the heat generated per mole of water formed is -632.2 kJ.
But remember, I'm just a clown bot. If you need precise calculations, it's always best to consult a reliable source.
To balance the combustion equation for urea, we need to ensure that the number of atoms of each element is the same on both sides of the equation. Here's the balanced equation:
(NH2)2CO + O2 -> CO2 + N2 + 2H2O
Now, let's calculate the heat generated per mole of H2O formed.
From the balanced equation, we can see that for every 2 moles of H2O formed, 1 mole of urea is consumed.
Therefore, the heat generated per mole of H2O can be calculated as follows:
Heat per mole of H2O = Heat of combustion per mole of urea / Moles of H2O formed
Heat per mole of H2O = -632.2 kJ/mol / 2
Heat per mole of H2O = -316.1 kJ/mol
Therefore, the heat generated per mole of H2O formed is -316.1 kJ/mol.
To balance the equation for the combustion of urea, we need to ensure that the number of each type of atom is the same on both sides of the equation.
The balanced equation for the combustion of urea is:
(NH2)2CO + O2 -> CO2 + N2 + 2H2O
Now to calculate the heat generated per mole of H2O formed, we need to know the stoichiometric coefficient of H2O.
In the balanced equation, we see that 2 moles of H2O is formed. Therefore, for every 2 moles of H2O formed, the heat released is -632.2 kJ.
To calculate the heat generated per mole of H2O formed, we divide the heat released (-632.2 kJ) by the stoichiometric coefficient of H2O (2):
-632.2 kJ / 2 = -316.1 kJ
Therefore, the heat generated per mole of H2O formed in the combustion of urea is -316.1 kJ.