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Considering the Formation reaction for Silica (reaction 3)...

Find the enthalpy of formation for SiO2 at STP (in symbols and in numbers) reaction (3).

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Find the entropy of formation for SiO2 at STP (in symbols and in numbers) reaction (3).

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Find the free energy of formation for SiO2 at STP (in symbols and in numbers) reaction (3).

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Find the equilibrium constant for reaction (3) at STP (in symbols and in numbers).

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Find the enthalpy of formation for SiO2 at 500 K,1 atm (in symbols and in numbers) reaction (3).

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On reverse side, find the equilibrium constant for reaction (3) at 500K (in symbols & in numbers).

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Deanna Hettinger
Deanna HettingerLv2
28 Sep 2019

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Related questions

*If the density of TNT is 1.65 g/cm^3, calculate the volume of a 454 g (which is 1 pound) quantity of the explosive before the explosion and the volume of gas produced after the explosion. Assume that the volume of the C(s) in the product of the following reaction is negligible (meaning you only need to focus on the 15 mol of gaseous products), and assume STP conditions:2C7H5N3O6 (l) --> 7CO (g) + 7C (s) + 5H2O (g) + 3N2 (g)All numbers immediately following elemental symbols are subscripts. You must show all work to receive credit. (HINT: You can use density, and the fact that 1 cm^3 = 1 mL, to find the initial condition for volume of the liquid. You can then use the mol of gaseous products to determine volume of final condition since you know molar volume at STP.)
*If the density of TNT is 1.65 g/cm^3, calculate the volume of a 454 g (which is 1 pound) quantity of the explosive before the explosion and the volume of gas produced after the explosion. Assume that the volume of the C(s) in the product of the following reaction is negligible (meaning you only need to focus on the 15 mol of gaseous products), and assume STP conditions:2C7H5N3O6 (l) --> 7CO (g) + 7C (s) + 5H2O (g) + 3N2 (g)All numbers immediately following elemental symbols are subscripts. You must show all work to receive credit. (HINT: You can use density, and the fact that 1 cm^3 = 1 mL, to find the initial condition for volume of the liquid. You can then use the mol of gaseous products to determine volume of final condition since you know molar volume at STP.)
*If the density of TNT is 1.65 g/cm^3, calculate the volume of a 454 g (which is 1 pound) quantity of the explosive before the explosion and the volume of gas produced after the explosion. Assume that the volume of the C(s) in the product of the following reaction is negligible (meaning you only need to focus on the 15 mol of gaseous products), and assume STP conditions:2C7H5N3O6 (l) --> 7CO (g) + 7C (s) + 5H2O (g) + 3N2 (g)All numbers immediately following elemental symbols are subscripts. You must show all work to receive credit. (HINT: You can use density, and the fact that 1 cm^3 = 1 mL, to find the initial condition for volume of the liquid. You can then use the mol of gaseous products to determine volume of final condition since you know molar volume at STP.)

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