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3 Cards in this Set
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- Back
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The specific latent heat of fusion of a substance is 1.8kj/kg.How much energy is required to melt the 2.2kg of this substance? |
Answer= L=1.8kj/kg = 1800j/kg M=2.2 kg E= 2.2x1800=38600 |
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An object of mass 5kg requires 16kj of energy to melt it.What is it’s latent heat of fusion? |
Method: 16000 divide 5kg=3200 |
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What causes the pressure of a gas on a surface?-The force of the gas particles hitting the surface. |
