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thermal_6_02_16_2011

# thermal_6_02_16_2011 - Heat Capacity of an Ideal Gas Be...

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Heat Capacity of an Ideal Gas Be able to distinguish between heat capacity and specific heat. Heat capacity: amount of heat Lecture 6 Heat capacity : amount of heat required to cause a unit change in temperature of a given substance. Specific heat : often the ratio of the heat capacity of a substance to the heat capacity of the same amount of a standard substance, like water.

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Heat Capacity of an Ideal Gas In this lecture, a number of thermodynamic processes related to an ideal gas will be analyzed. You will also learn what determines the heat capacity of an ideal gas from first principles. thermodynamic process? E int = Q in + W on Q=mcΔT PV=nRT
(P 2 , V 2 , T 2 ) P 2 1 FINAL STATE A General Thermodynamic Process for a Gas: How you go from initial to final state is important! (P 1 , V 1 , T 1 ) V 3 4 There are many ways to go from (P 1 ,V 1 ,T 1 ) to (P 2 ,V 2 ,T 2 ) INITIAL STATE Simple Analogy

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A Simple Analogy How do you go to Denver from Indianapolis ? 2 INITIAL STATE FINAL STATE 3 1 4 The exact mileage depends on the path!
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