Heating curves and specific heat
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Heating Curves and Specific Heat. The flat lines on a heating curve represent…. A temperature change. A constant state of matter. A change in state. A change in kinetic energy. The sloped lines on a heating curve represent…. A constant temperature. A change in state of matter.

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The flat lines on a heating curve represent
The flat lines on a heating curve represent…

  • A temperature change.

  • A constant state of matter.

  • A change in state.

  • A change in kinetic energy


The sloped lines on a heating curve represent
The sloped lines on a heating curve represent…

  • A constant temperature.

  • A change in state of matter.

  • A constant state of matter.

  • A constant speed of particles



When does kinetic energy increase on a heating curve
When does kinetic energy increase on a heating curve?

  • On the flat portions.

  • On the sloped lines.

  • Every point on the curve.


If the specific heat of ice is 0.5 cal/gC°, how much heat would have to be added to 200 g of ice, initially at a temperature of -10°C, to raise the ice to the melting point?

  • 1000 cal

  • -1000 cal

  • 2000 cal

  • -2000 cal


What is enthalpy heat of fusion
What is enthalpy (heat) of fusion?

  • Amount of energy to raise temperature of 1g by 10

  • Amount of energy needed to boil 1g

  • Amount of energy needed to melt 1g



For the same amount of heat added a substance with a large specific heat
For the same amount of heat added, a substance with a large specific heat…

  • Has a smaller increase in temp.

  • Has a larger increase in temp.

  • Has the same increase in temp.


What is the specific heat of a metal if 24.8 g absorbs specific heat…65.7 cal of energy and the temperature rises from20.2 C to 24.5 C?

  • .62 cal/g C

  • 78 cal/g C

  • 66 cal/g C


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