Regents Chemistry Test Worksheet Quiz

    Heat Of Reaction Amd Potential Energy Diagram

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    Base your answers to questions 10 on the information below and on your knowledge of chemistry.

    The equation below represents an equilibrium system of SO2(g), O2(g), and SO3(g). The reaction can be catalyzed by vanadium or platinum.

    2SO2(g) + O2(g) ⇌ 2SO3(g) + energy

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    Base your answers to questions 11 on the information below and on your knowledge of chemistry.

    The balanced equation below represents the reaction between carbon monoxide and oxygen to produce carbon dioxide.

    2CO(g) + O2(g) → 2CO2(g) + energy

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    Base your answers to questions 12 on the information below.

    The potential energy diagram and balanced equation shown below represent a reaction between solid carbon and hydrogen gas to produce 1 mole of C2H4(g) at 101.3 kPa and 298 K.

    kinetics-equilibrium, heat-of-reaction-amd-potential-energy-diagram, kinetics-equilibrium, heat-of-reaction-amd-potential-energy-diagram fig: chem12013-exam_g15.png

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    Base your answers to questions 13 on the information below and on your knowledge of chemistry.

    Carbon monoxide, CO(g), is a toxic gas found in automobile exhaust. The concentration of CO(g) can be decreased by using a catalyst in the reaction between CO(g) and O2(g). This reaction is represented by the balanced equation below.

    physical-behavior-of-matter, collision-theory, kinetics-equilibrium, collision-theory-and-the-rate-of-reaction, kinetics-equilibrium, rate-of-a-chemical-reaction fig: chem12017-exam_g16.png

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    Base your answers to questions 14 on the information below and on your knowledge of chemistry.

    The balanced equation below represents the reaction between a 5.0-gram sample of zinc metal and a 0.5 M solution of hydrochloric acid. The reaction takes place in an open test tube at 298 K and 1 atm in a laboratory activity.

    Zn(s) + 2HCl(aq) → H2(g) + ZnCl2(aq) + energy

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    Base your answers to questions 15 on the information below and on your knowledge of chemistry.

    One process used to manufacture sulfuric acid is called the contact process. One step in this process, the reaction between sulfur dioxide and oxygen, is represented by the forward reaction in the system at equilibrium shown below.

    2SO2(g) + O2(g) ⇌ 2SO3(g) + 394 kJ

    A mixture of platinum and vanadium(V) oxide may be used as a catalyst for this reaction. The sulfur trioxide produced is then used to make sulfuric acid.

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