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6.25 For each of the following reactions determine whether the reaction (ASay) will be positive, negative,...
6.24 For each of the following reactions determine whether ΔStor the reaction (ASsy) will be positive, negative, or approximately zero Cl HCI 2 CI OH
5. For each reaction determine whether AS for the reaction (ASsys) will be positive, negative, or approximately zero. (2 points, 1 point each) CH3 CH3
3) Predict whether the change in entropy is positive, negative, or zero for each of the following reactions at 298 K, and explain your reasoning (2 pts each. 8 pts total): 1.4 Fe(s) + 3 O2(g) → 2 Fe:O:(s) b. O(g) + ( ) → O.(g) NH,Cl(s) » NH(g) + HCl(g) d. Hz(g) + Cl:(g) → 2 HCI c.
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)
2. (6 points) Determine whether the following reactions are expected to have positive or negative changes in entropy (circle one). Briefly justify each answer in words. a Br2g) 3Cl(g) 2BrCl(g) Justification: POSITIVE NEGATIVE b. CO2(g) H20) H2cO3(aq Justification: POSITIVE NEGATIVE SF&I) SFo(s) Justification POSITIVE NEGATIVE C.
Short Answer: (4 points each) 1.) Predict whether the entropy change is positive or negative for each of the following reactions. GIVE YOUR REASON FOR YOUR PREDICTIONS a) 2KC1O4(s) → 2KCIO3() + O2(8) b) H2O → H2O) c) 2Na(3) + H2O → 2NaOH(aq) + H2() d) N2(g) → 2N) 2.) State whether the sign of the entropy change expected for each of the following processes will be positive or negative, and EXPLAIN YOUR PREDICTIONS. a) PC130) + Cl2(e) → PCls(s)...
Thermodynamics Practice Problems 1. Predict the sign of AS.(positive or negative) for the following reactions a 2 Mg(s) +,(@) 2 Mgo (s) AS b. CH206(s) → 2C,H,OH(I) + 2003(g) AS c. 2 NH3(g) + CO2(g) → H2O(l) + NH CONH3(aq) AS d. Cu(s) (at 100°C) → Cu(s) (at 25°C) AS 2. Which two variables can indicate if a reaction is spontaneous or not? 3. The second law of thermodynamics tells us that: a Energy is conserved. b. The entropy of...
1. Predict whether the entropy change for each of the following reactions will have a positive value or a negative value. Calculations are not necessary! (a) CH4 (g) + H2O (g) → C2H5OH (g) (b) 2 NO2 (g) → 2 NO (g) + O2 (g) (c) A1203 (s) + 3 H2 (g) → 2 Al(s) + 3 H2O (1)
Indicate whether ΔS° is large and positive, large and negative, or nearly zero in each of the following reactions. (a) NH3(g) + HCl(g) → NH4Cl(s) large and positive large and negative nearly zero (b) N2H4(g) → N2(g) + 2 H2(g) large and positive large and negative nearly zero (c) H2(g) + I2(g) → 2 HI(g) large and positive large and negative nearly zero (d) HF(aq) + NO2− (aq) → F − (aq) + HNO2(aq) large and positive large and negative...
1 pt Calculate the value of E' for each of the following reactions. Decide whether each is product-favored in the direction written Cl2(g) + Mg(s) Mg2+ (aq) + 2 CI" (aq) 1 pt - 1 pt 1 pt You may need to use the following data: Cl(s) +2e + 2 C1" (aq) E' +1.36 V Mg2+ (aq) +2e Mg(s) E-2.37 V 1 pt 1 pt V 1 pt Reaction is 1 pt b. 1 pt Zn(aq) + Mg(s) → Zn(s)...