"Controlling the amount of air entering the combustion tube" is the statement among the statements given in the question that <span>would let her control the rate of reaction in the solution. The correct option among all the options that are given in the question is the second option or option "b". I hope the answer helps you.</span>
1 mole of Ethanol molecule contains an Avogadro Number of molecules
1 mole of Ethanol molecule contains 6.02 * 10²³ molecules
3.5 moles of Ethanol will then contain: 3.5 * 6.02 * 10²³
= 2.107 * 10²⁴ molecules.
Answer:
1) Increasing the concentration of HCl [HCl] will increase the reaction rate.
2) The potential energy diagram is shown in the attached image.
3) Because of it is an irreversible reaction that goes to the forward direction . The reaction takes place till HCl dissolves Zn completely.
Explanation:
<em>Q1: State one change in reaction conditions, other than adding catalyst, that will increase the rate of the reaction.</em>
- The rate of the reaction, dissolving Zn in HCl, depends on the concentration of HCl.
Rate = k[HCl]².
<em>Rate ∝ [HCl]².</em>
- The rate is directly proportional to the concentration of HCl raised to the power 2,
<em>So, increasing the concentration of HCl [HCl] will increase the reaction rate.</em>
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<em>Q2: Draw a potential energy diagram for this reaction.</em>
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- Since the reaction releases energy that appears in the products side. So, the reaction is an exothermic reaction.
In an exothermic reaction, the energy of the reactants is higher than that of the products.
<em>The potential energy diagram is shown in the attached image.</em>
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<em>Q3: Explain why this reaction will not reach equilibrium.</em>
Because of it is an irreversible reaction that goes to the forward direction . The reaction takes place till HCl dissolves Zn completely.
It will take about 20 minutes