2. Predict the sign of ASsys for each of the following reactions. Write "positive" or "negative"....
6. (3 points) For each of the following reactions, predict the sign (positive or negative) for the AS and AH values. Then determine when the reaction will be spontaneous (always, never, at high temperatures, or at low temperatures). a. CH4(g) + 202 (g) → CO2 (g) + 2H20 (g) b. 4H3PO4(s) - P010 (s) + 6H20 (1) c. HCI (g) + NH3(g) → NH4Cl (s)
1. In the metallurgy of antimony, the pure metal is recovered from the sulfide ore by the following reaction: SbS(s) + 3Fe (s) 2 Sb(s) + 3FeS () AH-125 kJ Calculate AS un for this reaction at 25°C and 1 atm. 2. Predict the sign of AS., for each of the following reactions. Write "positive" or "negative". a. PCI (8) PCI (1) + Cl2 (g) b. CH. (g) +20, (g) CO2 (g) + 2 H20 (1) c. Mg(s) + Cl2...
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)
Predict the sign (positive or negative) on the entropy change for each of these reactions. (a) 2 50, (e) + O2(g) → 250 (6) (b) 2 NH; (6) ► N2 (€) + 3 H2 (8) (c) CO (B) + 2 H2(g) → CH3OH (0)
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...
0.75 pts Without doing any calculations, determine the sign of ASsys for each of the following chemical reactions A. 2KCIOg(s)-2KCI(s)+3O2(g) [Select ] B. C(s)+2H2(g)→CH4(g) [ Select ] C. Na(s)+1/2 Cl2(g)-NaCl(s) [ Select ] D. N2(g)+3H2(g)→2NH3(g) [Select ]
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) 2 CO (g) + 2 Cl2 (g) → 2 COCl2 (g) (b) 2 CO2 (g) → 2 CO (g) + O2 (g) (c) SiCl4 (g) + 2 H2O (g) → 4 HCl (g) + SiO2 (s, quartz)
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)...
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)
3. Predict the sign (positive or negative) on the entropy change for each of these reactions. (a) 2 SO2 (g) + O2 (g) → 2 SO3 (g) Negative (b) 2 NH3 (g) → N2 (g) + 3 H2 (g) (c) CO (g) + 2 H2 (g) → CH3OH (1) 4. For the reaction: 2NO2 (g) + N204 (g) at 298 K, The value of AH° and AS™ are -58.03 kJ and -176.6J/K, respectively. (a) What is the value of AG°...