Learning Goal
Part of: Thermal Energy, Heat, and Work — 2 of 3 chapter items
Heat, Specific Heat, and Heat Transfer
"The equation for heat transfer Q is Q = mcΔT, where m is the mass of the substance and ΔT is the change in its temperature, in units of Celsius or Kelvin. The symbol c stands for specific heat, and depends on the material and phase. The specific heat is the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00 ºC."
"Heat capacity is the amount of heat necessary to change the temperature of a substance by 1.00 °C. In equation form, heat capacity C is C = mc, where m is mass and c is specific heat. ... the heat capacity is a property of an object, but specific heat is a property of any object made of the same material."
"There are three different heat transfer methods: conduction, convection, and radiation. ... Radiation is the only method of heat transfer where no medium is required, meaning that the heat doesn't need to come into direct contact with or be transported by any matter."
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"The equation for heat transfer Q is Q = mcΔT, where m is the mass of the substance and ΔT is the change in its temperature, in units of Celsius or Kelvin. The symbol c stands for specific heat, and depends on the material and phase. The specific heat is the amount of heat necessary to change the temperature of 1.00 kg of mass by 1.00 ºC."
"Heat capacity is the amount of heat necessary to change the temperature of a substance by 1.00 °C. In equation form, heat capacity C is C = mc, where m is mass and c is specific heat. ... the heat capacity is a property of an object, but specific heat is a property of any object made of the same material."
"There are three different heat transfer methods: conduction, convection, and radiation. ... Radiation is the only method of heat transfer where no medium is required, meaning that the heat doesn't need to come into direct contact with or be transported by any matter."
What you'll learn
- Explain heat, heat capacity, and specific heat, and distinguish them from temperature
- Apply Q = mcΔT to calculate the heat required for a temperature change
- Distinguish conduction, convection, and radiation and identify which mode applies in a given scenario
- Solve problems involving specific heat and heat transfer, including cases with more than one material
Prerequisites
Slides
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