Originally: conversion of heat to motion
XIX Century: increase the efficiency of engines (1st and 2nd law)
Now a days: evolve to mathematical modelling of the real world. You can determine useful properties of matter from measuring other properties and then predict physical and chemical changes. (We measure, then we can apply that).
State: we care about now; we don’t care how it get there but the actual state.
Thermodynamics doesn’t tell us how something get from one point to another, just help us with the actual properties.
Studies of thermodynamics:
XIX Century: increase the efficiency of engines (1st and 2nd law)
Now a days: evolve to mathematical modelling of the real world. You can determine useful properties of matter from measuring other properties and then predict physical and chemical changes. (We measure, then we can apply that).
State: we care about now; we don’t care how it get there but the actual state.
Thermodynamics doesn’t tell us how something get from one point to another, just help us with the actual properties.
Studies of thermodynamics:
- Relationship between states of a system that undergoes a process.
- Calculate unknown properties (P, V, T, etc.) of initial and final state.
- 1st and 2nd law: how much power is needed or obtained; how much heat has been transferred. (2nd law is also regarded as the arrow of time)
- Equilibrium systems