andriese7363 andriese7363

30-12-2022
Chemistry

Answered

A scientist measures the standard enthalpy change for the following reaction to be -14.1 kJ: 3Fe2O3(s) + H2(g)2Fe3O4(s) + H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O(g) is kJ/mol.
b. A scientist measures the standard enthalpy change for the following reaction to be -582.2 kJ : H2CO(g) + O2(g)CO2(g) + H2O(l) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CO2(g) is kJ/mol.

Answer :

Other Questions

using standard heats of formation, calculate the standard enthalpy change for the following reaction. fe2o3(s) 2al(s) al2o3(s) 2fe(s)

Given the standard enthalpy changes for the following two reactions: N2(g) + 2 O2(g) long rightarrow 2 NO2(g) Delta H degree = 66.4 kJ 2 N2O(g) long rightarrow

Consider a fuel cell that uses the reaction CH4(g)+2O2(g)→CO2(g)+2H2O(l) Given the standard free energies of formation in Appendix B in the textbook, what is th

Use bond enthalpies (Table 8.4 in the textbook) to estimate the enthalpy change for each of the following reactions. H2C=O(g)+HCl(g)→H3C−O−Cl(g) H2O2(g)+2CO(g)→

Construct the octahedral crystal-field splitting diagram for the metal in each species. a. (H2O)6^3+ b. Co(CN)6^3 - c. Mn(H2O)6^2+

Consider the following reaction: PbCO3(s)←−→PbO(s)+CO2(g). A.) Using data in Appendix C in the textbook, calculate the equilibrium pressure of CO2 in the syste

The accompanying photo shows the reaction between a solution of cd(no3)2 and one of na2s. (a) What is the identity of the precipitate? (b) What ions remain in

a two step reaction mechanism is proposed for a gas phase reaction, as represented above. which of the follwoing correctly identifies both the chemical equation

Which element is reduced in the reaction below? I- + MnO4- + H+ ? I2 + MnO2 + H2O a) I b) H c) O d) Mn

Complete the following statements for the complex ion [Co(en)2(H2O)CN]2+. a. "en" is the abbreviation for _____. b. The oxidation number of Co is _____. c. The