A negative free energy change indicates that A. the reaction is exothermic. B. the reactant is...
A negative free energy change indicates that
| A. | the reaction is exothermic. |
| B. | the reactant is predominant at equilibrium. |
| C. | the reaction is at equilibrium. |
| D. | the reaction is not possible. |
| E. | energy must be added to the reaction before it can proceed. |
Homework Answers
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A negative free energy change indicates
that
A.
the reaction is exothermic.
B.
the reactant is...
4. (4 points) The free energy change of the reaction A(g) → B (g) is zero...
4. (4 points) The free energy change of the reaction A(g) → B (g) is zero under certain conditions. The standard free energy change of the reaction is -42.53. Circle ANY of the following that must be true about the reaction. a) The concentration of the product is greater than the concentration of the reactant. b) The reaction is at equilibrium. c) The concentration of the reactant is greater than the concentration of the product.
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate...
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate D) catalyst E) determinant 15) Any reaction that absorbs 150 kcal of energy can be classified as A) endothermic B) exothermic C) activated D) reduction E) oxidation 16) The is the energy difference between reactants and products in a chemical reaction. A) transition energy B) activation energy C) product energy D) overall energy E) heat of reaction 17) For the reaction of carbon with...
Consider two related reactions with the following Gibbs free energy profiles. In Reaction (A), the reactant has four energetically similar conformers, while in Reaction (B) there is only 1 predominant reactant conformer. In each case, the lowest energy re
Consider two related reactions with the following Gibbs free energy profiles. In Reaction (A), the reactant has four energetically similar conformers, while in Reaction (B) there is only 1 predominant reactant conformer. In each case, the lowest energy reactant (R) and product (P) conformers are indicated by a red circle. Which of the following statement is true about the equilibrium constants [P]/[R] for the two reactions?a. Reaction A would have a larger equilibrium constant because the reactant state is characterised by...
Consider the reaction A+B = C, with a standard free-energy change of -33.7 kJ/mol. If A,...
Consider the reaction A+B = C, with a standard free-energy change of -33.7 kJ/mol. If A, B, and C are mixed at initial concentrations 230 mm, 430 mM and 99 mm, respectively, at 25°C, the reaction (as written) will: O the reaction is at equilibrium o absorb ~ 17.0 kJ/mol of energy upon reaching equilibrium O proceed in the reverse direction, to produce more A and B O release ~ 17.0 kJ/mol of energy upon reaching equilibrium O proceed forward,...
in a chemical reaction equation, if the heat change is negative i. e exothermic, on which...
in a chemical reaction equation, if the heat change is negative i. e exothermic, on which side does the heat appear, reactant or products side?
Model 1 - Potential Energy Diagrams 1) The energy (enthalpy) change of a reaction can be...
Model 1 - Potential Energy Diagrams 1) The energy (enthalpy) change of a reaction can be determined by the following expression: Activated Complex Transition State AH = Energy products - Energy reactants Activation Energy, E Reactants Consider the energy change for the reaction in Model 1 (the graph to the left). Potential Energy (kJ/mol) Energy change (AH) Products a) The energy change shown is (positive/negative). b) This reaction is (endothermic / exothermic). c) These (reactants / transition state) has more...
An enzyme affects the rate of a chemical reaction by A. decreasing the free energy change...
An enzyme affects the rate of a chemical reaction by A. decreasing the free energy change of the reaction. B. increasing the free energy change of the reaction. C. lowering the energy of activation of the reaction. D. displacing the equilibrium constant. E. raising the energy of activation of the reaction.
PLEASE EXPLAIN WHY EACH ANSWER IS TRUE OR FALSE 6. The standard free energy AG° of...
PLEASE EXPLAIN WHY EACH ANSWER IS TRUE OR FALSE
6. The standard free energy AG° of the reaction A +B C following statements true or false. D is +3 kJ/mol. Mark the The standard free energy of the reaction can be calculated from the free energies of formation of A, B, C, and D from the elements. The reaction is endothermic under standard state conditions. One way to get the reaction to proceed to the right is to increase the...
12. Which statement is always true for an exothermic reaction? A) The enthalpy change is negative....
12. Which statement is always true for an exothermic reaction? A) The enthalpy change is negative. B) The reaction absorbs heat from the surroundings. C) The enthalpy change is positive. D) The work done on the system is zero
- (3p total Free energy of a chemical reaction is related to the equilibrium constant a....
- (3p total Free energy of a chemical reaction is related to the equilibrium constant a. Write the equation relating K and G. AG - K-AST b. For a reaction to proceed spontaneously from right to left, the value of K must be greater than I or less than 1. (Circle your answer). c. For a reaction to proceed spontaneously from right to left, the change in free energy must be greater than 0 or less than 0. (Circle your...
4. (4 points) The free energy change of the reaction A(g) → B (g) is zero under certain conditions. The standard free energy change of the reaction is -42.53. Circle ANY of the following that must be true about the reaction. a) The concentration of the product is greater than the concentration of the reactant. b) The reaction is at equilibrium. c) The concentration of the reactant is greater than the concentration of the product.
14) In an exothermic reaction, heat can be considered a A) reactant B) product C) rate D) catalyst E) determinant 15) Any reaction that absorbs 150 kcal of energy can be classified as A) endothermic B) exothermic C) activated D) reduction E) oxidation 16) The is the energy difference between reactants and products in a chemical reaction. A) transition energy B) activation energy C) product energy D) overall energy E) heat of reaction 17) For the reaction of carbon with...
Consider the reaction A+B = C, with a standard free-energy change of -33.7 kJ/mol. If A, B, and C are mixed at initial concentrations 230 mm, 430 mM and 99 mm, respectively, at 25°C, the reaction (as written) will: O the reaction is at equilibrium o absorb ~ 17.0 kJ/mol of energy upon reaching equilibrium O proceed in the reverse direction, to produce more A and B O release ~ 17.0 kJ/mol of energy upon reaching equilibrium O proceed forward,...
Model 1 - Potential Energy Diagrams 1) The energy (enthalpy) change of a reaction can be determined by the following expression: Activated Complex Transition State AH = Energy products - Energy reactants Activation Energy, E Reactants Consider the energy change for the reaction in Model 1 (the graph to the left). Potential Energy (kJ/mol) Energy change (AH) Products a) The energy change shown is (positive/negative). b) This reaction is (endothermic / exothermic). c) These (reactants / transition state) has more...
PLEASE EXPLAIN WHY EACH ANSWER IS TRUE OR FALSE
6. The standard free energy AG° of the reaction A +B C following statements true or false. D is +3 kJ/mol. Mark the The standard free energy of the reaction can be calculated from the free energies of formation of A, B, C, and D from the elements. The reaction is endothermic under standard state conditions. One way to get the reaction to proceed to the right is to increase the...
12. Which statement is always true for an exothermic reaction? A) The enthalpy change is negative. B) The reaction absorbs heat from the surroundings. C) The enthalpy change is positive. D) The work done on the system is zero
- (3p total Free energy of a chemical reaction is related to the equilibrium constant a. Write the equation relating K and G. AG - K-AST b. For a reaction to proceed spontaneously from right to left, the value of K must be greater than I or less than 1. (Circle your answer). c. For a reaction to proceed spontaneously from right to left, the change in free energy must be greater than 0 or less than 0. (Circle your...
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