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19 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Path function |
Heat and work |
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State functions |
Pressure temperature volume and composition |
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Extensive variables |
Mass volume heat capacity internal energy entropy Gibbs free energy surface area |
Depends on amount of matter |
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Intensive variables |
Pressure density temperature viscosity surface tension refractive index EMF chemical potential |
Independent of quantity of matter |
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Isobaric process |
Same pressure |
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Adiabatic process |
No exchange of heat |
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Isochoric process |
Volume same that is heating of gas in closed vessels |
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Cyclic process |
Enthalpy internal energy and potential energy is zero |
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Heat and work are |
Path dependent and mode of energy transfer between system and surrounding |
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Sign convention for expansion of gases |
Positive |
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Sign convention for work done by the system |
Negative |
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Sign convention for heat going out |
Negative |
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In reversible process |
System and surroundings are in equilibrium always |
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First law of thermodynamics |
∆u=w+q |
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Enthalpy |
Similar to potential energy. A change in enthalpy is brought out by heat transfer work done and internal energy |
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Heat capacity |
Amount of heat required to raise the temperature of the system by 1 Degree |
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Heat capacity at constant volume |
Change in internal energy/ Change in temperature |
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Heat capacity at constant pressure |
Change in enthalpy/ Change in temperature |
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Free expansion of ideal gas |
Work done is zero Temperature remains constant
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