Given ---->
H
= positive
S
= negative
And If
H is positive and
S is negative Then Reaction is always
nonspontaneous.
14. Determine if a reaction is spontaneous or nonspontaneous based on the following conditions: Cons ΔΗ...
Under which of the following conditions is a process spontaneous at high temperatures and nonspontaneous at low temperatures? Select the correct answer below: O AH and AS are both positive O AH and AS are both negative O ΔH is positive and Δ.S is negative O AH is negative and AS is positive
How is a nonspontaneous process made spontaneous? Check all that apply: A nonspontaneous process is coupled with a process that is highly spontaneous. Nonspontaneous reactions can be made spontaneous depending on the reaction conditions; i.e., ΔG° might be positive, but ΔG could be negative depending on the concentrations of the reactants and products. A nonspontaneous process is coupled with a process that is highly disordered. Nonspontaneous reactions can be made spontaneous depending on the reaction conditions; i.e., ΔG° might be...
spontaneous or nonspontaneous
spontaneous or nonspontaneous
spontaneous or nonspontaneous
Consider the following reaction: CACO3(s) CaO (s) + CO2 (g). Estimate AG for this reaction at each of the following temperatures. (Assume that AH° and AS do not change too much within the given temperature range.) Part A 290 K Part B 1095 K Part C 1475 K
Question 14 4 pts Match each relative size or sign to whether that indicates a reaction is spontaneous or nonspontaneous Positive delta G [Choose Nonspontaneous at high temperature only Spontaneous Nonspontaneous Spontaneous at high temperature only Positive delta H and positive delta Negative Ecell [Choose) Large K [Choose) Negative delta H and positive deltas [Choose)
Question 7 Below what temperature does the following reaction become nonspontaneous? 12(s) + Cl2(g)--2 ICI(s) ΔΗ +36.0 kJ: ΔS +158.8 J/K O 227 K O This reaction is spontaneous at all temperatures. O 313 K O This reaction is nonspontaneous at all temperatures. O 128 K
For the following reaction: 3O2(g) ------> 2O3(g) delta H= 285.4kJ Will the reaction be spontaneous, nonspontaneous, or impossible to determine at standard conditions. Briefly explain your answer.
Consider a reaction where E is a positive number. Is the reaction spontaneous or nonspontaneous? Which reduction potential will be higher, the anode or the cathode? a. spontaneous, anode b. spontaneous, cathode c. nonspontaneous, anode d. nonspontaneous, cathode
em 11 Review Constants ! Predict the spontaneity of a reaction (and the temperature dependence of the spontaneity) for each possible combination of signs for AH and AS (for the system). Part A A negative, AS positive The reaction will be spontaneous at low temperature, but nonspontaneous at high temperature, The reaction will be nonspontaneous at all temperatures. The reaction will be spontaneous at all temperatures. The reaction will be nonspontaneous at low temperature, but spontaneous at high temperature. Submit...
Chapter 18 Thermodynamics Homework 1.Predict the sign of AS for each process: a) The boiling of water b)2HgO(s)-2Hg(I) + 02(s) c) CaCO, (s)CaO(s)+ CO (g) 2. Is the following process spontaneous or nonspontaneous at a given temperature? NaNO,(s) ->NaNO,(aq) 3. If a reaction has ΔS < 0 and ΔΗ < 0 will the reaction always be spontaneous, spontaneous at low T, spontaneous at high T, or never spontaneous? 4.Consider this reaction: Calculate ΔG at 25 °C and determine whether the...
Based on the sign of E cell classify these reactions as
spontaneous or nonspontaneous as written assume standard
conditions
Based on the sign of E degree_cell, classify these reactions as spontaneous or non spontaneous as written. Assume standard conditions.