physics year 11 week 3
TRANSCRIPT
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Physics Year 11 Week 11
SHC and Latent Heat
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Background
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Differences
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Differences continued
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Water
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SHC of Common Substances
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Worked Example 1
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Worked Example 2
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Worked Example 2 continued
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Thermal Equilibrium
The principle of conservation of energy states that energy can be neither created nor destroyed, but can only be converted from one form to another. If there is no heat loss to the external surroundings, the heat lost by the hotter objects equals the heat gained by the cooler objects when placed in thermal contact.
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Worked Example 3
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Worked Example 3 continued
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Change of State
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Kinetic Energy & Changes of State Liquid/Gas
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Specific Latent Heat
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LHF and LHV
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Latent Heat of Fusion
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Latent Heat of Vaporisation
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LH of S
• The latent heat of sublimation is the heat needed to change each kilogram of solid to gas, or gas to solid.
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Specific Latent Heat
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Latent Heats of Selected Materials
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Worked Example 4
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Worked Example 4 continued
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Worked Example 5
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Worked Example 6
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Worked Example 6 continued