Input interpretation
![O_2 oxygen + Si silicon ⟶ SiO silicon monoxide](../image_source/0737834ff4226b639658f9c8987ed786.png)
O_2 oxygen + Si silicon ⟶ SiO silicon monoxide
Balanced equation
![Balance the chemical equation algebraically: O_2 + Si ⟶ SiO Add stoichiometric coefficients, c_i, to the reactants and products: c_1 O_2 + c_2 Si ⟶ c_3 SiO Set the number of atoms in the reactants equal to the number of atoms in the products for O and Si: O: | 2 c_1 = c_3 Si: | 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_1 = 1 and solve the system of equations for the remaining coefficients: c_1 = 1 c_2 = 2 c_3 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | O_2 + 2 Si ⟶ 2 SiO](../image_source/dab81b4898a8b50b4d40bca4f516d4fd.png)
Balance the chemical equation algebraically: O_2 + Si ⟶ SiO Add stoichiometric coefficients, c_i, to the reactants and products: c_1 O_2 + c_2 Si ⟶ c_3 SiO Set the number of atoms in the reactants equal to the number of atoms in the products for O and Si: O: | 2 c_1 = c_3 Si: | 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_1 = 1 and solve the system of equations for the remaining coefficients: c_1 = 1 c_2 = 2 c_3 = 2 Substitute the coefficients into the chemical reaction to obtain the balanced equation: Answer: | | O_2 + 2 Si ⟶ 2 SiO
Structures
![+ ⟶](../image_source/2f8eda6637677f03cdfcffb6ff4b5ef2.png)
+ ⟶
Names
![oxygen + silicon ⟶ silicon monoxide](../image_source/99007b6960e5ca4c4a4084f87fff5325.png)
oxygen + silicon ⟶ silicon monoxide
Equilibrium constant
![Construct the equilibrium constant, K, expression for: O_2 + Si ⟶ SiO Plan: • Balance the chemical equation. • Determine the stoichiometric numbers. • Assemble the activity expression for each chemical species. • Use the activity expressions to build the equilibrium constant expression. Write the balanced chemical equation: O_2 + 2 Si ⟶ 2 SiO Assign stoichiometric numbers, ν_i, using the stoichiometric coefficients, c_i, from the balanced chemical equation in the following manner: ν_i = -c_i for reactants and ν_i = c_i for products: chemical species | c_i | ν_i O_2 | 1 | -1 Si | 2 | -2 SiO | 2 | 2 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression O_2 | 1 | -1 | ([O2])^(-1) Si | 2 | -2 | ([Si])^(-2) SiO | 2 | 2 | ([SiO])^2 The equilibrium constant symbol in the concentration basis is: K_c Mulitply the activity expressions to arrive at the K_c expression: Answer: | | K_c = ([O2])^(-1) ([Si])^(-2) ([SiO])^2 = ([SiO])^2/([O2] ([Si])^2)](../image_source/b35b667e514d5744020abd5eb3e8ff05.png)
Construct the equilibrium constant, K, expression for: O_2 + Si ⟶ SiO Plan: • Balance the chemical equation. • Determine the stoichiometric numbers. • Assemble the activity expression for each chemical species. • Use the activity expressions to build the equilibrium constant expression. Write the balanced chemical equation: O_2 + 2 Si ⟶ 2 SiO Assign stoichiometric numbers, ν_i, using the stoichiometric coefficients, c_i, from the balanced chemical equation in the following manner: ν_i = -c_i for reactants and ν_i = c_i for products: chemical species | c_i | ν_i O_2 | 1 | -1 Si | 2 | -2 SiO | 2 | 2 Assemble the activity expressions accounting for the state of matter and ν_i: chemical species | c_i | ν_i | activity expression O_2 | 1 | -1 | ([O2])^(-1) Si | 2 | -2 | ([Si])^(-2) SiO | 2 | 2 | ([SiO])^2 The equilibrium constant symbol in the concentration basis is: K_c Mulitply the activity expressions to arrive at the K_c expression: Answer: | | K_c = ([O2])^(-1) ([Si])^(-2) ([SiO])^2 = ([SiO])^2/([O2] ([Si])^2)
Rate of reaction
![Construct the rate of reaction expression for: O_2 + Si ⟶ SiO Plan: • Balance the chemical equation. • Determine the stoichiometric numbers. • Assemble the rate term for each chemical species. • Write the rate of reaction expression. Write the balanced chemical equation: O_2 + 2 Si ⟶ 2 SiO Assign stoichiometric numbers, ν_i, using the stoichiometric coefficients, c_i, from the balanced chemical equation in the following manner: ν_i = -c_i for reactants and ν_i = c_i for products: chemical species | c_i | ν_i O_2 | 1 | -1 Si | 2 | -2 SiO | 2 | 2 The rate term for each chemical species, B_i, is 1/ν_i(Δ[B_i])/(Δt) where [B_i] is the amount concentration and t is time: chemical species | c_i | ν_i | rate term O_2 | 1 | -1 | -(Δ[O2])/(Δt) Si | 2 | -2 | -1/2 (Δ[Si])/(Δt) SiO | 2 | 2 | 1/2 (Δ[SiO])/(Δt) (for infinitesimal rate of change, replace Δ with d) Set the rate terms equal to each other to arrive at the rate expression: Answer: | | rate = -(Δ[O2])/(Δt) = -1/2 (Δ[Si])/(Δt) = 1/2 (Δ[SiO])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)](../image_source/768d18b1d0b70ca4b0019f60f7e6ba84.png)
Construct the rate of reaction expression for: O_2 + Si ⟶ SiO Plan: • Balance the chemical equation. • Determine the stoichiometric numbers. • Assemble the rate term for each chemical species. • Write the rate of reaction expression. Write the balanced chemical equation: O_2 + 2 Si ⟶ 2 SiO Assign stoichiometric numbers, ν_i, using the stoichiometric coefficients, c_i, from the balanced chemical equation in the following manner: ν_i = -c_i for reactants and ν_i = c_i for products: chemical species | c_i | ν_i O_2 | 1 | -1 Si | 2 | -2 SiO | 2 | 2 The rate term for each chemical species, B_i, is 1/ν_i(Δ[B_i])/(Δt) where [B_i] is the amount concentration and t is time: chemical species | c_i | ν_i | rate term O_2 | 1 | -1 | -(Δ[O2])/(Δt) Si | 2 | -2 | -1/2 (Δ[Si])/(Δt) SiO | 2 | 2 | 1/2 (Δ[SiO])/(Δt) (for infinitesimal rate of change, replace Δ with d) Set the rate terms equal to each other to arrive at the rate expression: Answer: | | rate = -(Δ[O2])/(Δt) = -1/2 (Δ[Si])/(Δt) = 1/2 (Δ[SiO])/(Δt) (assuming constant volume and no accumulation of intermediates or side products)
Chemical names and formulas
![| oxygen | silicon | silicon monoxide formula | O_2 | Si | SiO Hill formula | O_2 | Si | OSi name | oxygen | silicon | silicon monoxide IUPAC name | molecular oxygen | silicon | oxoniumylidynesilanide](../image_source/601839e48c6e877a5ebd989ee989afb8.png)
| oxygen | silicon | silicon monoxide formula | O_2 | Si | SiO Hill formula | O_2 | Si | OSi name | oxygen | silicon | silicon monoxide IUPAC name | molecular oxygen | silicon | oxoniumylidynesilanide
Substance properties
![| oxygen | silicon | silicon monoxide molar mass | 31.998 g/mol | 28.085 g/mol | 44.084 g/mol phase | gas (at STP) | solid (at STP) | solid (at STP) melting point | -218 °C | 1410 °C | 1702 °C boiling point | -183 °C | 2355 °C | 1880 °C density | 0.001429 g/cm^3 (at 0 °C) | 2.33 g/cm^3 | 2.13 g/cm^3 solubility in water | | insoluble | insoluble surface tension | 0.01347 N/m | | dynamic viscosity | 2.055×10^-5 Pa s (at 25 °C) | | odor | odorless | |](../image_source/68515ed2045ce9b6ff0d51f056c5c3dc.png)
| oxygen | silicon | silicon monoxide molar mass | 31.998 g/mol | 28.085 g/mol | 44.084 g/mol phase | gas (at STP) | solid (at STP) | solid (at STP) melting point | -218 °C | 1410 °C | 1702 °C boiling point | -183 °C | 2355 °C | 1880 °C density | 0.001429 g/cm^3 (at 0 °C) | 2.33 g/cm^3 | 2.13 g/cm^3 solubility in water | | insoluble | insoluble surface tension | 0.01347 N/m | | dynamic viscosity | 2.055×10^-5 Pa s (at 25 °C) | | odor | odorless | |
Units