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Home/ Questions/What can be said about Q and K immediately after an increase in temperature?
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kttutoria
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kttutoriaExpert
Asked: April 12, 20222022-04-12T16:44:38+00:00 2022-04-12T16:44:38+00:00In: Chemistry

What can be said about Q and K immediately after an increase in temperature?

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A(aq) ⇔ B(aq)  ΔAH = +750 kJ/mol

Q1. What can be said about Q and K immediately after an increase in temperature?

  • A. Q > K because Q increased
  • B. Q > K because K decreased
  • C. Q = K because neither changed.
  • D. Q < K because Q decreased.
  • E. Q < K because K increased.

Q2. How will the system respond to a temperature increase?

  • A. shift right
  • B. no change
  • C. shift left

♦ Relevant knowledge
The rate of chemical reactions is a number that identifies how quick or slow an action is determined by changes in the concentration of the substance over a period of time.

As temperatures rise the rate of reaction increases and vice versa, because as temperatures rise and the temperature increases, the movement of the molecules increase as the molecules collide with greater force which means that the reaction happens faster. Normally as the temperature increases to 100C and the rate of reaction increases by between 2 and four times.

If the temperature of the reaction is raised to t0C, the rate of reaction will increase by 10/10 (where A is the coefficient of temperature and how many times that the rate increases each time the temperature increases up to 100C).

When the concentration of reactants rises as does the rate of reaction also increases (this can be seen clearly in the expression (2) because , as the concentration of reactants rises the collisions between components of reactants and the effectiveness of collisions) rise.

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    kttutoria Expert
    2022-04-12T16:50:29+00:00Added an answer on April 12, 2022 at 4:50 pm

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