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16 Cards in this Set
- Front
- Back
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1 cm³ = x mL = x cc?
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1cm³ = 1 mL = 1 cc
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1 m³ = x L?
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1m³ = 1000 L
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How do we go from °C to °K?
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°C + 273.15 = °K
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What does STP mean?
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T = 0°C or 273.15°K
P = 1atm |
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Ideal Gas Law
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PV = nRT
(atm, L, K) |
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What is the constant R
for the Ideal Gas Law? |
0.08 L*atm/mol*K
**OR** 8 J/mol*K |
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Isobaric
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Constant Pressure
V₁T₂ = V₂T₁ |
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Isochoric
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Constant Volume
P₁T₂ = P₂T₁ |
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Isothermal
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Constant Temperature
P₁V₁ = P₂V₂ |
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Partial Pressure
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Pa = X * Ptotal
Where X = "Mole Fraction" found by diving the number of mols of subject by total mols |
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Total Partial Pressure
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Ptotal = P₁ + P₂ ...
Which is equal to Xa*Ptot + Xb*Ptot... |
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Effusion of a Gas
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- Recall that KE and T are proportional
- So, how fast a gas goes is proportional to its molecular weight Rate of Effusion A/Rate of Effusion B = (√mmB / mmA) |
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Ideal Gases
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- Have no IMF
- Take up no volume - KE is proportional to T - Collisions are elastic IDEAL always > than REAL!! |
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What are the UNITS of PRESSURE?
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Real World: it's Pascals (Pa).
On the MCAT, it's atm!!! Recall 1 atm = 760 mmHg = 760 torr = 101,300 Pa This is important because you need to CONVERT before you answer a question! |
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What are the UNITS of TEMPERATURE?
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Real world: We use °C
On the MCAT, it's KELVIN!! °C + 273 = °K This is important because you need to CONVERT before you answer a question! |
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What are the units of VOLUME?
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Real world: m³
On the MCAT, it's LITERS! 1m³ = 1000L 1cm³ = 1mL This is important because you need to CONVERT before you answer a question! |
