Given:
Hof(CH4(g)) = -75.0 KJ/mol
Hof(Cl2(g)) = 0.0 KJ/mol
Hof(CHCl3(g)) = -103.0 KJ/mol
Hof(HCl(g)) = -92.0 KJ/mol
Balanced chemical equation is:
CH4(g) + 3 Cl2(g) ---> CHCl3(g) + 3 HCl(g)
ΔHo rxn = 1*Hof(CHCl3(g)) + 3*Hof(HCl(g)) - 1*Hof( CH4(g)) -
3*Hof(Cl2(g))
ΔHo rxn = 1*(-103.0) + 3*(-92.0) - 1*(-75.0) - 3*(0.0)
ΔHo rxn = -304 KJ
Answer: -304 KJ
5. Given the data below, what is AHⓇ for the following reaction? CH4(g) + 3Cl2(g) →...
Part A Use the information provided to determine AH°rxn for the following reaction: AHⓇ CH4(9) + 4 Cl2(g) → CCl4(g) + 4 AH°rxn = (kJ/mol) HCl(9) CH4(9) -75 CCl4(g) -96 HCl(g) -92 +79 kJ O -389 kJ 0 -113 kJ O +113 kJ O -71 kJ Submit Request Answer
The overall reaction to produce chloroform from methane is CH4(g) + 3Cl2(g) ---> CHCl3(l) + 3HCl(g). Use the following intermediate reactions to calculate the enthalpy of the reaction, Hrxn. 1/2 H2(g) + 1/2 Cl2(g) ---> HCl(g) Hrxn = -92.3 kj C(s) + 2H2(g) ----> CH4(g) Hrxn = -74.8 kj C(s) + 1/2 H2(g) + 3/2 Cl2(g) ----> CHCl3(l) Hrxn = -134.5 kj
12. The value of AH° for the reaction below is.-336 kJ. Calculate the heat (kJ) released to the surroundings when 23.0 g of HCl is formed. CH4 (g) + 3Cl2 (g) → CHCl3 (1) + 3HCl (8)
QUESTION 4 Using bond-energy data, what is AHⓇ for the following reaction? CH4(g) + 2F2(g) - CF4(g) + 2H2(g) Bond Bond Energy (kJ/mol) C-H 413 432 159 Н-Н F-F C-F O a. 1489 kJ Ob.561 kJ O c. 834 kJ d. -561 kJ O e.-834 kJ
Using the following thermochemical data: 2Y(s) + 6HF(g) → 2YF3(s) + 3H2(g) 2Y(s) + 6HCl(g) 2YC13(s) + 3H2(g) calculate AHⓇ for the following reaction: YF3(s) + 3HCl(g) → YC13(s) + 3HF(g) AH° = -1811.0 kJ/mol AH = -1446.2 kJ/mol Select one: O a. 364.8 kJ/mol O b.-3257.2 kJ/mol C. 182.4 kJ/mol O d.-1628.6 kJ/mol O e. 729.6 kJ/mol
Methane and chlorine react to form chloroform and hydrogen chloride, like this: CH4(9)+3C12(g) → CHCl3(9)+3HCl(9) The reaction is exothermic. Suppose a mixture of CH4, C12, CHCl3 and HCl has come to equilibrium in a closed reaction vessel. Predict what change, if any, the perturbations in the table below will cause in the composition of the mixture in the vessel. Also decide whether the equilibrium shifts to the right or left. perturbation change in composition shift in equilibrium O to the...
Use the standard reaction enthalpies given below to determine AHⓇ rxn for the following reaction: 2 NO(g) + O2(g) + 2NO2(g) AHørxn = ? Given: N2(E) + O2(g) + 2NO(g) AH®rxn = +183 kJ AHørxn = +33 kJ 1/2N2(E) + O2(g) + NO2(g) -150. kJ O-117 kJ O-333 kJ +115 kJ +238 kJ
9. Given the following data: 2C1F(g) + O2(g) → Cl2O(g) + F20(g) 2C1F3(g) + 2O2(g) → Cl2O(g) + 3F20 2F2(g) + O2(g) → 2F20(g) AH = 167.4 kJ AH = 341.4 kJ AH = -43.4 kJ Calculate AH for the reaction CIF(g) + F2(g) → CIF3(g) 10. Calculate AHº for the following reaction using the AHⓇ information below. 4NH3(g) + 5O2(g) → 4NO(g) + 6H2O(g) AH NH3(g) is -80 kJ/mol AH° NO(g) is 90 kJ/mol AH®, H2O(g) is -242 kJ/mol
Use the ΔH°f values provided to determine ΔH°rxn for the following reaction CH4(g) + 3 Cl2(g) → CHCl3(l) + 3 HCl(g) ΔH°rxn = ? ΔH°f (kJ/mol): -75 -134 -92 A. +662 kJ B. +117 kJ C. -151 kJ D. -335 kJ The equation that corresponds to the enthalpy of formation for NH3(g) is A. N(g) + 3H(g) → NH3(g) B. N(g) + 3/2 H2(g) → NH3(g) C. 1/2 N2(g) + 3H(g) → NH3(g) D. 1/2 N2(g) + 3/2 H2(g) →...
solution pls
13. Find the Hºrn for the reaction 2NH3(g) + 3Cl2(g) → N2(g) + 6HCl(g). AH°F (NH3) = -46 kJ/mol, AH°F (HCI) = -92.3 kJ/mol Answer: -461.8 kJ 14. Use the standard enthalpies of formation to calculate AH°rxn: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) AH°F (Fe2O3) = -826 kJ/mol, AH°F (CO) = -110.5 kJ/mol, AH°F (CO2) = -393.5 kJ/mol Answer: -23 kJ 15. Given the following reaction: B2H6(g) + 6H2O(l) → 2H3BO3(g) + 6H2(g) AH°= -493.4 kJ AH°t...