If a reaction is exothermic and non-spontaneous at 25 oC and 1 atm pressure, it may be spontaneous at higher temperatures. spontaneous at lower temperatures. endothermic at lower temperatures. endothermic at higher temperatures. nonspontaneous at all temperatures.
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If a reaction is exothermic and non-spontaneous at 25 oC and 1 atm pressure, it may...
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....
A spontaneous reaction Select one: a. is always exothermic. b. may be exothermic or endothermic. c. is always endothermic. d. does not involve any heat exchange with surroundings. Which one? Need help please!
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...
Consider the vaporization of liquid water to steam at a pressure of 1 atm. Part A Is this process endothermic or exothermic? Is this process endothermic or exothermic? endothermic exothermic SubmitMy AnswersGive Up Part B In what temperature range is it a spontaneous process? In what temperature range is it a spontaneous process? below 100 ?C above 100 ?C below 0 ?C above 0 ?C at no temperature SubmitMy AnswersGive Up Part C In what temperature range is it a...
Are all the exothermic reactions spontaneous? Are all the endothermic reactions non- spontaneous? Explain your reasoning using appropriate equations. 4.
Calculate \(\Delta \mathrm{H}^{\circ}\) and \(\Delta \mathrm{G}^{\circ}\), using data in Appendix C. Determine whether each reaction is endothermic or exothermic, and spontaneous or nonspontaneous.a) \(\quad 2 P b O(s)+N_{2}(g) \rightarrow 2 P b(s)+2 N O(g)\)b) \(\mathrm{CS}_{2}(l)+2 \mathrm{H}_{2} \mathrm{O}(l) \rightarrow \mathrm{CO}_{2}(g)+2 \mathrm{H}_{2} \mathrm{~S}(g)\)
Is water vaporization, H_2O(l) rightarrow H_2O(g), at room temperature and pressure a) exothermic or endothermic? _____ b) more random or less? _____ c) spontaneous or nonspontaneous? _____ d) work done by the system or to the system? _____
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.
8. For the following reaction, CC2(s) + 2H2O(l) + Ca(OH)2(s) + C2H2(g) which is spontaneous at all temperatures, one would predict that a. AG is positive for all temperatures. d. AH is - and AS is for the reaction. b. AH is + and AS is for the reaction. e. AH is + and AS' is- for the reaction. c. AH is - and AS is for the reaction. 9. Calculate the standard absolute entropy, in J/mol K. of Mg:...
the first one is supposed to be meant spontaneous. thanks
ction to be non-spontaneous at any temperature, which of the following В. Tur a chemical reaction to b conditions must be met? AS > 0, AITO AS > 0, AIT <0 AS <0, AHP <0 AS <0, AHP>0 D. 2. Place the following in on lowing in order of decreasing standard molar entropy. N204(8) NO(g) NO2(g) 204 > NO2 > NO B) NO > NO2 > N204 E) NO2 >...