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15 Cards in this Set
- Front
- Back
What is isothermal?
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Constant Temperature
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What is isochoric?
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Constant Volume
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What is isobaric?
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Constant Pressure
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What is Vm ?
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Vm = V/n = Volume/Moles
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What is z?
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z is the compressisibility factor
z = PVm/RT = 1 |
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What is an ideal gas?
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Gas particles do not exchange energy (elastic)
PV = NRT |
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How do you convert from Celsius to Kelvin?
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C + 273 = K
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What is q?
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heat = flow of energy = thermal energy
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What does the sign of q mean?
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+q = heat flows into system
-q = heat flows out of system |
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What is U?
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internal energy = sum of motions
1) kinetic: translational, rotational, vibrational, electronic 2) potential: intermolecular forces, bonding interactions, external forces |
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What is du?
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Infinitesimal change of internal energy
not measureable NOT = ΔU |
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What is enthalpy?
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heat transferred at constant pressure = ΔH
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What can be said under...
1) isothermal conditions 2) adiabatic conditions 3) isochoric conditions 4) isobaric conditions |
1) dT = 0 ; dU = 0; dH = 0; dq = -dw
2) q = 0 ; du = dw = nCv,mdT 3) dV = 0 ; dw = 0; du = dq = nCv,mdT 4) dP = 0; dH = dq |
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Why does it take more energy for reversible work than irreversible work?
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In reversible work the external pressure is constantly being changed to match the internal pressure. This is what makes it reversible!
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1 L = ...
1) __ dm^3 2) ___ m^3 |
1) 1 dm^3
2) 1 * 10^-3 cubic meters |