The sign of delta H does not change. The sign of delta H changes. What effect...
Consider this reaction: (CH_3)3CBr + H_2O rightarrow (CH_3)_3COH +HBr what effect does doubling the concentration of (CH_3)_3CBr have on the rate? a) doubles the rate b) halves the rate c) quadruples the rate d) has no effect on the rate Consider this reaction CH_3CH_2CH_2CI rightarrow NaOH CH_3CH_2CH_2OH what effect does doubling the concentration of NaOH have on the rate? a) doubles the rate b) halves the rate c) quadruples the rate d) has no effect on the rate Consider this...
assuming the values of delta H and delta S are constant, at
what temperature does the reaction become nonspontaneous?
Moving to the next question prevents changes to this answer Question 4 stion 14 3 points Sve The reaction PC3(E) + Cl28) PCi5(e) has a AS of vßon:-170.2 J/mol.K and a AH of -87.9 kJ/mol. Assuming the values of AH and As are constant, at what temperature does the reaction become to-spowaneous? 789.6°C 516.5°C 1863.3°C 243.3°C A ng to t o...
What is the meaning of delta H (change in enthalpy), delta S (change in entropy) and delta G (change in Gibbs free energy) as it relates to mixing two liquids together? In what situations is each of these variables negative/positive?
1. Using the reactions given below please calculate the change in enthalpy (delta H) for the stated reaction. Stated Reaction: Fe2O3(s) + 3 CO(g) → 2 Fe(s) + 3 CO2(g) delta H = ?! Given Reactions & Enthalpy Changes: 2 Fe(s) + 3/2 02(g) → Fe2O3(s) 2 Fels) * delta H = -824.2 kJ delta H = -282.7 kJ CO(g) + 4 02(g) → CO2(g) 2. Using the reactions given below please calculate the change in enthalpy (delta H) for...
Assuming no other changes, what is the effect of doubling only the concentration of the alkyl halide in the above S_N 1 reaction? quadruples the rate rate is halved no change triples the rate doubles the rate
At a given temperature and pressure, how does the magnitude of delta H- vaporization of a water compare to the delta H-condensation? Begin by writing the balanced chemical equation for water undergoing condensation or for water undergoing evaporation.
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....
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question.Thank you
(a) Predict the sign of Delta S for each of the following changes. Explain your response: (b) Given the following reaction: HOBr_(aq) + Br^-_(aq) Br_2(g) + OH^-_(aq) calculate the equilibrium constant for the reaction under standard pressure at 298 K given Delta H^Compositefunction = 15.51 (kJ/mol) and Delta S^Compositefunction = 111.89 (J/(mol K)).
Write the equation for the CHANGE in FREE ENERGY. Show whether the sign for each term will be +/-. How does the MAGNITUDE of the ENTROPY CHANGE (T) compare with the MAGNITUDE of CHANGE in ENTHALPY (H, which represents a larger change in E)? + (∆G) = - (∆H) – (-T∆S); T∆S > ∆H (I don't know if what I'm doing here is correct?)
What is the balanced chemical equation for the reaction used to calculate Delta H degree_t of CaCO_3(s)? If fractional coefficients are required, enter them as a fraction (i.e. 1/3).Indicate the physical states using the abbreviation (s), (I), or (g) for solid, liquid, or gas, respectively without indicating allotropes Use (aq) for aqueous solution. Express your answer as a chemical equation.