Input interpretation
chlorine + methane ⟶ hydrogen chloride + methyl chloride
Balanced equation
Balance the chemical equation algebraically: + ⟶ + Add stoichiometric coefficients, c_i, to the reactants and products: c_1 + c_2 ⟶ c_3 + c_4 Set the number of atoms in the reactants equal to the number of atoms in the products for Cl, C and H: Cl: | 2 c_1 = c_3 + c_4 C: | c_2 = c_4 H: | 4 c_2 = c_3 + 3 c_4 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_1 = 1 and solve the system of equations for the remaining coefficients: c_1 = 1 c_2 = 1 c_3 = 1 c_4 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | + ⟶ +
Structures
+ ⟶ +
Names
chlorine + methane ⟶ hydrogen chloride + methyl chloride
Reaction thermodynamics
Enthalpy
| chlorine | methane | hydrogen chloride | methyl chloride molecular enthalpy | 0 kJ/mol | -74.6 kJ/mol | -92.3 kJ/mol | -81.9 kJ/mol total enthalpy | 0 kJ/mol | -74.6 kJ/mol | -92.3 kJ/mol | -81.9 kJ/mol | H_initial = -74.6 kJ/mol | | H_final = -174.2 kJ/mol | ΔH_rxn^0 | -174.2 kJ/mol - -74.6 kJ/mol = -99.6 kJ/mol (exothermic) | | |
Chemical names and formulas
| chlorine | methane | hydrogen chloride | methyl chloride Hill formula | Cl_2 | CH_4 | ClH | CH_3Cl name | chlorine | methane | hydrogen chloride | methyl chloride IUPAC name | molecular chlorine | methane | hydrogen chloride | chloromethane