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March 29, 2017

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What mass of ice at 0°C can be melted by the addition of 1670 joules of heat?


When the temperature is decreased on the following system at equilibrium:

2 HCl(aq) + Mg(s) <--> MgCl2(aq) + H2(g) + heat

a. In order to restore equilibrium, the reaction shifts left, toward reactants

b.No change occurs
c. In order to restore equilibrium, the reaction shifts right, toward products

  • chem - ,

    1670J = mass ice x heat fusion.

    The system shifts to undo what we've done. How can it do that? Obviously, if we decrease T the system will try to increase T. Which way will it shift to do that?

  • chem - ,

    What mass of ice at 0°C can be melted by the addition of 1670 joules of heat?

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