Chemistry - Enthalpy change

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7 Terms

1
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what is the technique used to determine the relative amounts of energy released by a fuel

calorimetry

2
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where can the two types of enthalpy changes occur

  1. reactions in a solution

  2. combustion

3
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why must solutions be mixed together in an insulated container

to prevent heat loss

4
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what is the formula for calculating enthalpy change

Q = M x C x /\T

5
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what do each part of the equation represent

  1. Q = the heat energy change

  2. M = the mass of the substance being heated

  3. C = the specific heat capacity

  4. /\T = temperature change

6
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how do you calculate the energy released per gram

energy released/mass of fuel burned

7
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how do you calculate the energy released per mole

energy released/number of moles