Given that a reaction is Exothermic in the foward direction and has a forward activation energy of 50 kj/mol, which of the following statements are correct? Choose all that apply (Hint: you may want to draw the energy diagram) The reverse reaction has an activation energy less than 50 kl/mol. The reverse reaction will give off energy. The reverse reaction has an activation energy equal to 50 kl/mol. The reverse reaction has an activation energy greater than 50 kJ/mol. The reverse reaction will absorb energy.

(a) increasing the pressure of NO2 from 0.3 atm to 0.9 atm The rate   (increase),(decrease)  by a factor of . (b) increasing the concentration of CO from 0.03 M to 0.06 M The rate (increase),(decrease)    by a factor of .

The activation energy of the forward reaction 96.27 kJ/mol and the activation energy for the reverse reaction is 60.33 kJ/mol. What is the DH of the reaction?  78.3 kJ/mol    17.97 kJ/mol  -156.6 kJ/mol  35.94 kJ/mol

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Consider a hypothetical chemical reaction A + B → C, where A and B are reactants and C is the product. The reaction is known to have a high activation energy barrier. However, upon adding a catalyst, the reaction proceeds at a significantly faster rate. Explain the role of the catalyst in reducing the activation energy barrier and increasing the reaction rate.

For a reaction with activation energy of 44 kJ and heat of reaction of -31 kJ and product energy of 90. kJ,  what is the reactant energy level?   Question 5 options:   134   121   46   103   59   13

Which of the following is true?   Decreasing the activation energy decreases the reaction rate. Decreasing the activation energy increases the reaction rate. The activation energy of an exothermic reaction is negative. There is no relationship between activation energy and reaction rate.

40. The reaction that produces ammonia is represented by a balanced equation, shown below. A catalyst can be used to increase the rate of the reaction. N2(g) + 3H2(g) → 2NH3(g) + energy A potential energy diagram for the reaction is shown below. C A Reaction Coordinate What occurs when a catalyst is added to a chemical reaction? A. an alternate reaction pathway lowers activation energy, changing the magnitude of both B and C B. new reactants are added which increases their potential energy, changing the magnitude of both A and D C. different products are produced with a lower potential energy, changing the magnitude of both A and B D. the temperature is increased so there are more effective collisions, which changes the magnitude of A and C