Assign the best (most specific) description of the change in energy for each of the reactions...
For each of the reactions, identify other quantities that are equal to enthalpy of reaction, A Hºrxn- 1. CH,(g) +20,(g) + CO2(g) + 2 H,O(1) 2. CH (8) C($) + 4H(g) enthalpy of atomization of CH4 4x bond energy of C-H enthalpy of atom combination for CO2 enthalpy of combustion of CH4 enthalpy of formation of CO2(g) enthalpy of combustion of CH4 4x bond energy of C-H enthalpy of atom combination for CHA enthalpy of atomization of CH4 enthalpy of...
Select which process describes the following energy changes. (Ionization energy, electron affinity, bond enthalpy, or standard enthalpy of formation A. F(g) + e- => F-(g) B. F2(g) => 2F(g) C. Na(g) => Na+(g) + e- D. Na(s) + 1/2F2(g) => NaF(g)
A scientist measures the standard enthalpy change for the following reaction to be - 87.7 kJ : 2HBr(g) + Cl2(g)— 2HCl(g) + Bra(s) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of HCl(g) is kJ/mol CH4() + H2O(g)_3H2(g) + CO(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O() is kJ/mol Given the standard enthalpy changes for...
please explain each step in clear writing. Chloroform (CHCI3) is formed from methane and chlorine in the following reaction: CH4 (g)3C12 (g)3HC1(g)+CHCI3 (g) Calculate A, Ho, the enthalpy change for this reaction, using the standard molar enthalpy change of formation of CHCI3 (g), AfH° = -103.1 kJ mol1, and the standard enthalpy changes for the following reactions: CH4 (g)202 (g)2H2O (e) CO2 (g) AH°=-890.4 kJ mol-1 2HC1(g) H2 (g)Cl2 (g) A,.H +184.6 kJ mol1 C(graphite)O2 (g)CO2 (g) A H°=-393.5 kJ...
state whether the following reactions are exothermic or endothermic: TOH2 +502 + N2 + 2 + 2H2 - AW03 - TUPU H UL 2. State whether each of the following reactions are exothermic or endothermic: a. NaOH(s) Na (aq) + OH (aq) 10H2 +602 + 2H2 10H2O + Z H2O 12H2 + 602 e 12 H₂ + 120 12H₂ + 120 + 12H2+120 b. NaOH(s) + H'(aq) + CI+ (aq) → H2O(1) + Na" (aq) + ciaq) c. Na" (aq)...
For which one of the following reactions will the enthalpy change be approximately equal to the internal energy change? 2 NaN3(s) → 2 Na(s) + 3 N2(g) 2 H2O( ℓ ) → 2 H2(g) + O2(g) 2 Sb(s) + 3 I2(g) → 2 SbI3(s) Ca(NO3)2(aq) + 2 NH4Cl(aq) → CaCl2(aq) + 2 NH4NO3(aq) CaCO3(s) → CaO(s) + CO2(g)
19. Which of these reactions correspond to the enthalpy of formation (OHC) A C2H2(g) + H2(g) → CH4 (9) B H2(1) +02(1) - H20(1) Cdiamond + O2(g) → C02(9) D H20 (g) → H20(1) E Na(s) + Cl2(g) → NaCl(s)
Predict whether the entropy change is positive or negative for each of the following reactions. Give reasons for your predictions. a. 2 KClO4(s) + 2 KClO3(s) + O2(g) b. H2O(g) → H20(1) c. 2 Na(s) + 2 H20(1) ► 2 NaOH(aq) + H2(g) d. N2(g) → 2 N(g)
For each of the following reactions, identifly another quantity that is equal to AHr CH,(g) + 20,le) co,(g) +2H,0(1) 1. → O enthalpy of combustion of CH O enthalpy of formation of COg) O 4xbond energy of C-H O -4xbond energy of C-H O O O O enthalpy of combustion of CH4 enthalpy of formation of C(g) 4xbond energy of C-H -4xbond energy of C-H O O O O enthalpy of combustion of CHa enthalpy of formation of CHs(g) 4xbond...
Which of the following half reactions is MOST LIKELY TO OCCUR at the cathode of an electrolytic cell containing aqueous NaCl? You may use the table of reduction potentials. Group of answer choices a) Cl2(g) + 2 e− → 2 Cl−(aq) b) Na+(aq) + e− → Na(s) c) Cl−(aq) + e− → Cl2−(aq) d) 2 H2O(l) + 2 e− → H2(g) + 2 OH−(aq) e) Na(s) + e− → Na−(aq) Can you explain which reaction I should look for (s,...