Thermodynamics

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PY1010 semester 1

Last updated 8:46 PM on 4/25/26
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11 Terms

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intensive state variables

Variables that dont scale w size of system you’re studying e.g. pressure, temp

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Extensive state variables

variables that do scale w size of system you're studying e.g. mass

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Temperature in kelvin

TK = T°C + 273.15

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Temperature difference

ΔT = T2 - T1

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Change in heat energy

ΔQ = mcΔT

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What does c mean in change in heat energy formula

specific heat capacity (J/kg/K)

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Phase transitions

energy absorbed/ released during phase changes

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Latent heat of transformation

L = Q/m

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(Thermal transport) conduction

Q = KhA(ΔT/L)t

Efficient in dense media - solid to solid, solid to water

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(thermal transport) convection

P = Ahc(Ts-T)

Efficient in liquids/ gases

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(Thermal transport) radiation

P = AεσT 4

Any object at a temp of T radiates this power