Decomposition of CaCO, has a AH° = 178 kJ/mol and ASP = 0.530 kJ/mol K. At...
1. A reaction has AH = 100 kJ/mol and AS = 250 J/mol K. a. Is the reaction spontaneous at room temperature? b. If not, under what temperature conditions will it become spontaneous? 2. Consider the following reaction at 298 K: N204(g) = 2NO2(g) KP=0.142 What is the standard free energy change at this temperature? Is the reaction spontaneous at this temperature?
a reaction has delta H = 100.0 kJ/mol and delta S = 250.0 J/mol K. Is the reaction spontaneous at room temperature? If no, at what temperature (in K and C) does this reaction become spontaneous?
For a particular reaction, AH = -16.1 kJ/mol and AS = -21.8 J/(mol-K). Assuming these values change very little with temperature, at what temperature does the reaction change from no to spontaneous in the forward direction? 5 T= Is the reaction in the forward direction spontaneous at temperatures s greater than or less than the calculated temperature? less than O greater than
3. A certain process, AH = 178 kJ, and AS = 160 J/K. What is the minimum temperature at which the process will be spontaneous? (What assumptions must be made in order to answer this question?) (5) GAHTASN AG78 T XH TO/SO-ANSS 0-NA TAUVE DISTE oot CRI ADO TSE ORS 6se 2 yetet- Toe O dog CHRD 4EOnd
At what temperature will a reaction be spontaneous? AH- +222 kJ/mol and AS - +811 J/K-mol and assume both do not vary with temperature. at T> 298 K at all temperatures at T > 274 K at T<274K at T < 298 K
At what temperature will a reaction be spontaneous? AH = +22.2 kJ/mol and AS = +81.1 J/K-mol and assume both do not vary with temperature. at T > 298 K at all temperatures at T < 298 K at T < 274 K at T> 274 K
AH = 44.0 kJ/mol AS = 0.119 kJ/mol K The following reaction takes place at 120°C: H20(1) - H2O(g) Which of the following must be true? Select one: O a. Two of these O b. The reaction is not spontaneous O c The reaction is spontaneous. O d. AG = 0 e. AGO
B. For this reaction, AH=-54kJ/mol and AS=231/K•mol. At what temperatures is this reaction spontaneous? 23 kJ/kinol)
A reaction has a AH of -122 kJ/mol and a AS of +231 J/mol K. When will this reaction proceed spontaneously? A. At all temperatures B. Not at any temperature C. At high temperatures only D. At low temperatures only
5. (opts total) a. For a certain reaction, AH = 142 kJ/mol and AS = - 30.5 J/mol K at 25°C. Calculate the value of AGº for this reaction. Ans: AGº = A different reaction has AH = -106 kJ/mol and AS°= 94.3 J/mol K at 250 Call Ans: AGº = c. Will the reaction in Sa be spontaneous? How can you tell? Will the reaction in 5b be spontaneous? How can you tell?