6. (3 points) For each of the following reactions, predict the sign (positive or negative) for...
2. Predict the sign of ASsys for each of the following reactions. Write "positive" or "negative". a. PСls (s) → PCI; (1) + Cl2 (g) b. CH4 (g) + 2 O2 (g) → CO2 (g) + 2 H20 (1) c. Mg(s) + Cl2 (g) MgCl2 (s). d. CH1206 (8) + 602 (g) 6CO2 (g) + 6H20 (g)
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...
Predict whether AS will be positive or negative for reactions (a) and (b): a. 2 HgO(s) → 2Hg(1) + O2(g) AS b. 2 CH (B) + 70(8) ► 4 CO2(g) + 6 H2O(1) AS Choose one of the above reactions a OR b. Calculate the AH® for your chosen reaction using information from the table below. AH = Using your answers above, predict under what temperature (temp) conditions (high temp or low temp) where this reaction will be spontaneous, or...
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°...
Indicate the sign of Gº at low and high temperatures for the following reactions: Reaction Low T High T NH3(g) + HCl(g) NH4Cl(s) Hº < 0 CaCO3(s) CaO(s) + CO2(g) Hº > 0 CH3OH(l) CH3OH(g) 2Cl2(g) + 7O2(g) 2Cl2O7(l) Hº > 0
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. reaction observations conclusions The reverse of this reaction is always AH is (pick one) spontaneous but proceeds slower at temperatures below 142. C. AS is (pick one) (pick one) AH is This reaction is spontaneous except...
14. For the following reactions, predict whether they will tend to be spontaneous at high, low, all temperatures, or non-spontaneous at any temperature (10 points) a) An "instant ice-pack" type of reaction where AS > 0, and AH > 0 b) 3A (1) ► B(s) + C(1) + D(g), AH < 0 c) 2A(s) → B(g) + C(1), AH > 0
Exercise 18.38-Enhanced-with Feedback 7 of 13> Part E ReviewI ConstantsI Periodic Table In addition, predict under what temperatures (all temperatures, low temperatures, or high temperatures), if any the reaction in each part will be spontaneous. Without doing any calculations, iddentify the signs of ΔSays and ΔSsurr for each of the following chemical reactions. Drag the appropriate items to their respective bins. Reset Help Reaction is spontaneous at all temperatures Reaction is spontaneous at low temperatures Reaction is spontaneous at high...
Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: if you have not been given enough information to decide a sign, select the "unknown" option. observations conclusions reaction AH is (pick one) Crystallization of a pure compound is A spontaneous only below-2. °C. As is (pick one) (pick one) AH is this reaction is always The reverse spontaneous but proceeds slower...
please include the sign of each for H and S its either positive/negative/unknown O ENTROPY AND FREE ENERGY Using the conditions of spontaneity to deduce the signs Use the observations about each chemical reaction in the table below to decide the sign (positive or negative) of the reaction enthalpy AH and reaction entropy AS. Note: If you have not been given enough information to decide a sign, select the "unknown" option reaction observations conclusions AH is pick one This reaction...