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Calculate the activation energy (EA) for the forward reaction.
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- Find the deltaH for the reaction below, given the following reactions and subsequent deltaH values: N2H4(l) + H2(g) —> 2NH3 (g) N2H4(l) + CH4O(l) —> CH2O (g) + N2(g) + 3H2(g)—— deltaH= -32.8kj N2(g)+ 3H2(g) —> 2NH3 (g)—deltaH=-57.2 kj CH4O(l) —>CH2O(g) + H2(g) —-deltaH= -65 kj SIG FIGSCompound ΔHf (kj/mol) C2H5OH(i) -277.6 H2O(i) -285.8 H2O(g) -241.8 CO2(g) -393.5 CO(g) -110.5 H2O2(i) -187.6 C3H8(g) -103.8 What is the ΔH for the following reaction? C2H5OH(i) + 3O2 (g) --> 2CO2(g) + 3H2O(i)According to the conventions above, what is the sign ( + or ) of the P.E. change (H) for Rxn 3?
- Orgonic Chemistry II: The answer is writtten as followed. But I Need Explanation. My question is that: Can I siwtch reagent 2 to reagent 1? for example reagent 1 is Cl2,Fecl3, can I changed it to reagent 2??? Why and why not???From the enthalpies of reaction2 C1s2 + O21g2¡ 2 CO1g2 ΔH = -221.0 kJ2 C1s2 + O21g2 + 4 H21g2¡ 2 CH3OH1g2 ΔH = -402.4 kJcalculate ΔH for the reactionCO1g2 + 2 H21g2¡CH3OH1g2Determine the Ksp of the following reactions. a. NaC2H3O2 Na+ + C2H3O2- b. HBr H+ + Br c. Zn(OH)2 Zn+2 + 2HO- d. PbCl2 Pb+2 + 2Cl- e. SnSO4 Sn+2 + SO4-
- kindly answer from C to ECalculate ∆Hrxn for the following reaction:N2H4(l) + CH4O(l) → CH2O(g) + N2(g) + 3H2(g)Use the following reactions and given ∆H values.2 NH3(g) → N2H4(l) + H2(g) ΔH = +22.5 kJ/molN2(g) + 3 H 2(g) → 2 NH3(g) ΔH = +57.5 kJ/molCH2O(g) + H2(g) → CH4O(l) ΔH = +81.2 kJ/molCalculate the ∆Hrxn for the reaction below: MgCl2 (aq) + 2 KOH (aq) ---> Mg(OH)2 (s) + 2 KCl (aq) ∆Hfo for MgCl2 (aq) = -797.1 kJ/mol ∆Hfo for KOH (aq) =-424.2 kJ/mol ∆Hfo for Mg(OH)2 (s) = -924.7 kJ/mol ∆Hfo for KCl (aq) = -419.6 kJ/mol ∆Hrxno = ? kJ Don't forget the sign and write your 4 significant figures.
- Which of the reactions have a positive ΔSrxn? Select one or more: a. 2 A(g) + 2 B(g) ⟶ 5 C(g) b. A(s) + 2 B(g) ⟶ C(g) c. 2 A(g) + 3 B(g) ⟶ 4 C(g) d. A(s) + B(g) ⟶ 2 C(g)Using differences in C-H bond dissociation energies, calculate approximate selectivities secondary vs primary halogenation for the following compound at 0o C. Be sure to include numerical differences.Which reactions have a positive Δ?rxn? 2A(g)+2B(g)⟶5C(g) A(s)+B(s)⟶C(g) 2A(g)+2B(g)⟶3C(g) A(g)+B(g)⟶C(g)