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Triple Point of a Substance (HEAT (Latent Heat (Phase transition (Melting…
Triple Point of a Substance
SOLID
GAS
LIQUID
HEAT
Enthalpy,h (J/kg)
Total heat content in a system
Calculate heat transfer
Entropy,s (J/kg.K)
Unavailability of a systems internal thermal energy → mechanical work
Degree of randomness/disorder in the system
Heat Capacity
Measurable physical quantity
*Amount of heat needed to raise 1°C of 1kg substance
Latent Heat
Latent heat is the heat released or absorbed
A chemical substance or a thermodynamic system
During a change of state that occurs without a change in temperature
Phase transition
Melting of ice
Boiling of water
PRESSURE
Ideal Gas Law
p=ρRT
Calorifically perfect gas
Wet/Near-Wet
Liquid Pressure (p=ρgh)
Vapour Pressure
Thermodynamics equilibrium
Condensed phases
Boiling Point
Solid → Gas (Evaporation)
Gas → Solid (Condensation)
Temperature : 0.01°C
Pressure : 611.5Pa
0.6% of usual atmospheric pressure
Coexist in a stable equilibrium :-