1. A reaction is spontaneous. What can you conclude about the reverse reaction? It must be endothermic. It is non-spontaneous. It must have a decrease in entropy. It is in equilibrium.
2. ∆G is most affected by the presence of a catalyst the magnitude of the enthalpy the magnitude of the entropy the temperature
1. That it is in equilibrium because only then the reverse reaction can occur
2. The temperature. Because ∆G= ∆H-T∆S
Changes in temperature can make entroy more negative or positive. Thus it affects the most.
1. A reaction is spontaneous. What can you conclude about the reverse reaction? It must be...
A reaction is spontaneous. What can you conclude about the reverse reaction? It must be endothermic. It is non-spontaneous. It must have a decrease in entropy. It is in equilibrium.
5 of 15 A reaction is non-spontaneous. What can you conclude about the reverse reaction? O It is spontaneous. It must be exothermic O It must have an increase in entropy O It is in equilibrium. 6 of 15 Based on the AG calculation, a student determined that a synthesis reaction should be spontaneous. When the student tries out the reaction, however, nothing happens. Which explanation is most plausible? O the student probably made a mistake in the calculation O...
What can be said about an Endothermic reaction with a negative entropy change? The reaction is a. spontaneous at all temperatures. b. spontaneous at high temperatures. c. spontaneous at low temperatures. d. spontaneous in the reverse direction at all temperatures. e. nonspontaneous in either direction at all temperatures. What can be said about an Exothermic reaction with a negative entropy change? The reaction is a. spontaneous at all temperatures. b. spontaneous at high temperatures. c. spontaneous at low temperatures. d....
What can be said about an endothermic reaction with a negative entropy change? The reaction is What can be said about an endothermic reaction with a negative entropy change? spontaneous at all temperatures. spontaneous at high temperatures. spontaneous at low temperatures. spontaneous in the reverse direction at all temperatures. nonspontaneous in either direction at all temperatures. Part B What can be said about an exothermic reaction with a negative entropy change? The reaction is What can be said about an...
What can be said about an endothermic reaction with a negative entropy change? The reaction is What can be said about an endothermic reaction with a negative entropy change? spontaneous at all temperatures. spontaneous at high temperatures. spontaneous at low temperatures. spontaneous in the reverse direction at all temperatures. nonspontaneous in either direction at all temperatures.
Which statement is true? A. Spontaneous changes are always accompanied by an increase in the enthalpy of the system. B. Spontaneous changes are always accompanied by a decrease in the entropy of the system. C. Spontaneous changes are always accompanied by a decrease in the enthalpy of the system. D. Most highly exothermic chemical reactions are also spontaneous chemical reactions. E. Spontaneous changes are always accompanied by an increase in the entropy of the system. For a certain chemical reaction,...
Entropy (S) The second factor involved in determining whether or not a process is spontaneous is the change in randomness or entropy (AS). Entropy is represented by the symbol S. Again, experience can help us understand the relationship between entropy and spontaneous processes. If we look at the two drawings below, we can predict which picture represents the stack of marbles "before" and after they are bumped. We expect the stack of marbles (less random, lower entropy) to be the...
Question 5 The spontaneity of a reaction depends both on the enthalpy change, Delta H, and entropy change, Delta S. Reactions that release energy produce more stable products, and the universe tends toward disorder. Thus, an exothermic reaction with a positive entropy change will always be spontaneous. Mathematically, this relationship can be represented as where Delta G is the change in Gibbs free energy and T is the Kelvin temperature. If Delta G is negative, then the reaction is spontaneous....
Path: P QUESTION 3 If the following reaction is spontaneous, what can we conclude about it's change in entropy AS? Is the value of AS positive or negative? NaNO3(s) - Na*(aq) + NO3(aq) T T T Arial 3 (12pt) T-E-
What can you say about a reaction that has a positive enthalpy value and positive entropy value? (choose all that are correct) the reaction is spontaneous at low temperatures the reaction is spontaneous at high temperatures the reaction has a favorable enthalpy the reaction has an unfavorable entropy the reaction is never spontaneous the reaction has a favorable entropy the reaction is always spontaneous the reaction has an unfavorable enthalpy