Input interpretation
sulfuric acid + copper ⟶ water + sulfur dioxide + cupric oxide
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 + c_5 Set the number of atoms in the reactants equal to the number of atoms in the products for H, O, S and Cu: H: | 2 c_1 = 2 c_3 O: | 4 c_1 = c_3 + 2 c_4 + c_5 S: | c_1 = c_4 Cu: | c_2 = c_5 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 c_5 = 1 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | + ⟶ + +
Structures
+ ⟶ + +
Names
sulfuric acid + copper ⟶ water + sulfur dioxide + cupric oxide
Reaction thermodynamics
Enthalpy
| sulfuric acid | copper | water | sulfur dioxide | cupric oxide molecular enthalpy | -814 kJ/mol | 0 kJ/mol | -285.8 kJ/mol | -296.8 kJ/mol | -157.3 kJ/mol total enthalpy | -814 kJ/mol | 0 kJ/mol | -285.8 kJ/mol | -296.8 kJ/mol | -157.3 kJ/mol | H_initial = -814 kJ/mol | | H_final = -739.9 kJ/mol | | ΔH_rxn^0 | -739.9 kJ/mol - -814 kJ/mol = 74.07 kJ/mol (endothermic) | | | |
Entropy
| sulfuric acid | copper | water | sulfur dioxide | cupric oxide molecular entropy | 157 J/(mol K) | 33 J/(mol K) | 69.91 J/(mol K) | 248 J/(mol K) | 43 J/(mol K) total entropy | 157 J/(mol K) | 33 J/(mol K) | 69.91 J/(mol K) | 248 J/(mol K) | 43 J/(mol K) | S_initial = 190 J/(mol K) | | S_final = 360.9 J/(mol K) | | ΔS_rxn^0 | 360.9 J/(mol K) - 190 J/(mol K) = 170.9 J/(mol K) (endoentropic) | | | |
Chemical names and formulas
| sulfuric acid | copper | water | sulfur dioxide | cupric oxide Hill formula | H_2O_4S | Cu | H_2O | O_2S | CuO name | sulfuric acid | copper | water | sulfur dioxide | cupric oxide