Which of the following are true? Choose all that apply. If the energy of the activated complex were decreased, Ea would decrease. AE is positive. The reaction is exothermic. The energy of the products is lower than the energy of the reactants.

Which of the following is true about the following reaction when the temperature is raised? N₂O4(g) 2 NO₂(g) AH = 57.0 kJ Equilibrium will shift to the right. Equilibrium will shift to the left. Equilibrium will shift to produce more heat. No effect on the equilibrium.

In an equilibrium reaction with a Keq of 1 x 10⁸, the... *     reactants are favored       reaction is spontaneous       products are favored       reaction is exothermic

2. The intracellular concentration of glucose-6-phosphate and fructose-6-phosphate are measured inside the cell of a patient and the following values were obtained: (glucose-6-phosphate] = 8 x 10-5 M [fructose-6-phosphate] = 1.5 x 10-5 M %3D %3D Is this reaction at equilibrium? What is the value of Q?. What do you predict the sign for AG will be? Calculate AG for this reaction.

Consider the reaction: CaCO3(s) ↔ CaO(s) + CO2(g) The reaction enthalpy and entropy are: ΔHo rx = -117.1 kJ∙mol-1; ΔSo rx = -362 J∙K-1mol-1. Assume that these values are independent of temperature.   If this reaction is in equilibrium and the temperature is increased, what do you expect will happen? Write one of the following: net reaction to right, net reaction to left, no net reaction and explain your reasoning. Do not use Le Chatelier’s Principle

Which of the following statements is correct if a reaction is carried out at constant pressure? The heat change is equal to the change in temperature. The reaction is likely to be exothermic. The reaction is likely to be endothermic. The heat change is equal to the enthalpy change.

The following reaction is classified as and CHĄ(g) + 202(g) - > CO2(g) + 2H20(g) exothermic reaction

Which of the following is true: A reaction where the entropy of the system increases can only be spontaneous if it is exothermic A reaction where the entropy of the system increases can be spontaneous only if the reaction is endothermic A reaction in which the entropy of the system decreases can only be spontaneous if it is exothermic

For a chemical reaction, which conditions will result to the formation of the product? Choose from the choices below:       Low kinetic energy and more collision among molecules.       High kinetic energy and more collision among molecules.       Low kinetic energy and proper orientation among molecules.       High kinetic energy and proper orientation among molecules.

Which of the following statement is NOT true?     The equilibrium constant of a reaction varies with temperature.     In most biochemical systems, enthalpy is equivalent to heat.     Any deviation from equilibrium prompts a process to restore the system to equilibrium.     Free energy changes can be calculated from reactant and product concentrations.     If a system maintains a steady state it must have reached equilibrium.