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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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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.

• A constant state of matter.

• A constant speed of particles

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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?

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

• Amount of energy needed to boil 1g

• Amount of energy needed to melt 1g

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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.

• .62 cal/g C

• 78 cal/g C

• 66 cal/g C