Interpretation:
The energy diagram graph for an exothermic reaction with catalyst and without catalyst has to be drawn and the similarities and differences between the two have to be indicated.
Concept Introduction:
Exothermic reaction:
The
Presence of Catalysts:
Catalyst is a substance which can increase the
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EBK GENERAL, ORGANIC, AND BIOLOGICAL CH
- Sketch an energy diagram graph representing an exothermic reaction, and label the following. a. Average energy of reactants b. Average energy of products c. Activation energy d. Amount of energy liberated during the reactionarrow_forwardSketch an energy diagram graph representing an endothermic reaction, and label the following. a. Average energy of reactants b. Average energy of products c. Activation energy d. Amount of energy absorbed during the reactionarrow_forwardSketch energy diagrams to represent each of the following. Label the diagrams completely and tell how they are similar to each other and how they are different. a. Exothermic exergonic reaction with activation energy b. Exothermic exergonic reaction without activation energyarrow_forward
- For each of the changes listed will the rate of the following chemical reaction increase, decrease, or remain the same? Fe(s)+2HCl(aq)FeCl2(aq)+H2(g) a. the concentration of HCl is decreased b. the iron is ground into a powder c. a catalyst is added to the reaction mixture d. the temperature of the solution is decreasedarrow_forwardIndicate whether or not product formation increases with increasing temperature in each of the following equilibrium systems. a. N2(g)+2O2(g)+heat2NO2(g) b. heat+2N2(g)+6H2O(g)4NH3(g)+3O2(g) c. C2H4(g)+3O2(g)2CO2(g)+2H2O(g)+heat d. 2KClO3(s)+heat2KCl(s)+3O2(g)arrow_forwardIndicate whether or not each of the following changes would affect the value of a systems equilibrium constant. a. Removal of a reactant from the equilibrium mixture b. Decrease in the systems total pressure c. Decrease in the systems temperature d. Addition of a catalyst to the equilibrium mixturearrow_forward
- Indicate to which of the following types of reactions each of the statements listed applies: combination, decomposition, displacement, exchange, and combustion. More than one answer is possible for a given statement. a. Two reactants are required. b. Only one reactant is present. c. Two products are present. d. Only one product is present.arrow_forwardIndicate whether or not each of the following changes would affect the value of a systems equilibrium constant. a. Addition of a product to the equilibrium mixture b. Increase in the systems total pressure c. Increase in the systems temperature d. Addition of both a reactant and a product to the equilibrium mixturearrow_forwardWill each of the changes listed increase or decrease the rate of the following chemical reaction? N2+3H22NH3 a. Adding some N2 to the reaction mixture b. Raising the temperature of the reaction mixture c. Removing a catalyst present in the reaction mixture d. Removing some H2 from the reaction mixturearrow_forward
- For the generalized chemical reaction A(g)+B(g)C(g)+D(g) determine whether the concentration of A in an equilibrium mixture will (1) increase, (2) decrease, or (3) not change when each of the following changes is effected. a. concentration of B is increased b. concentration of C is decreased c. concentration of D is increased d. concentration of D is decreasedarrow_forwardFor the generalized chemical reaction A(g)+B(g)C(g)+D(g) determine whether the concentration of D in an equilibrium mixture will (1) increase, (2) decrease, or (3) not change when each of the following changes is effected. a. concentration of A is increased b. concentration of B is decreased c. concentration of C is increased d. concentration of C is decreasedarrow_forwardWhen a mixture of hydrogen and bromine is maintained at normal atmospheric pressure and heated above 200. °C in a closed container, the hydrogen and bromine react to form hydrogen bromide and a gas-phase equilibrium is established. Write a balanced chemical equation for the equilibrium reaction. Use bond enthalpies from Table 6.2 ( Sec. 6-6b) to estimate the enthalpy change for the reaction. Based on your answers to parts (a) and (b), which is more important in determining the position of this equilibrium, the entropy effect or the energy effect? In which direction will the equilibrium shift as the temperature increases above 200. °C? Explain. Suppose that the pressure were increased to triple its initial value. In which direction would the equilibrium shift? Why is the equilibrium not established at room temperature?arrow_forward
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