Input interpretation
aluminum + nitrogen ⟶ aluminum nitride
Balanced equation
Balance the chemical equation algebraically: + ⟶ Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 ⟶ c_3 Set the number of atoms in the reactants equal to the number of atoms in the products for Al and N: Al: | c_1 = c_3 N: | 2 c_2 = c_3 Since the coefficients are relative quantities and underdetermined, choose a coefficient to set arbitrarily. To keep the coefficients small, the arbitrary value is ordinarily one. For instance, set c_2 = 1 and solve the system of equations for the remaining coefficients: c_1 = 2 c_2 = 1 c_3 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | 2 + ⟶ 2
Structures
+ ⟶
Names
aluminum + nitrogen ⟶ aluminum nitride
Reaction thermodynamics
Enthalpy
| aluminum | nitrogen | aluminum nitride molecular enthalpy | 0 kJ/mol | 0 kJ/mol | -318 kJ/mol total enthalpy | 0 kJ/mol | 0 kJ/mol | -636 kJ/mol | H_initial = 0 kJ/mol | | H_final = -636 kJ/mol ΔH_rxn^0 | -636 kJ/mol - 0 kJ/mol = -636 kJ/mol (exothermic) | |
Chemical names and formulas
| aluminum | nitrogen | aluminum nitride Hill formula | Al | N_2 | AlN name | aluminum | nitrogen | aluminum nitride IUPAC name | aluminum | molecular nitrogen | nitriloalumane
Substance properties
| aluminum | nitrogen | aluminum nitride molar mass | 26.9815385 g/mol | 28.014 g/mol | 40.989 g/mol phase | solid (at STP) | gas (at STP) | solid (at STP) melting point | 660.4 °C | -210 °C | 2200 °C boiling point | 2460 °C | -195.79 °C | 2517 °C density | 2.7 g/cm^3 | 0.001251 g/cm^3 (at 0 °C) | 3.26 g/cm^3 solubility in water | insoluble | insoluble | decomposes surface tension | 0.817 N/m | 0.0066 N/m | dynamic viscosity | 1.5×10^-4 Pa s (at 760 °C) | 1.78×10^-5 Pa s (at 25 °C) | odor | odorless | odorless |
Units
