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What does the symbol U represent? |
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What does the symbol H represent? |
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What does the symbol G represent? |
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What does the symbol S represent? |
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What does the symbol q represent? |
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Definition
heat absorbed by a system from the surroundings |
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What does the symbol W represent? |
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Definition
work done by a system on the surroundings |
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What are the units on H, q, U, W, and G? |
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What are the units of entropy? |
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What is the relation between U, q, and W? |
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Definition
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What is the equation for S? |
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Definition
S=kAlnW where W is the number of energetically equivalent ways to arrange a system. |
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How are G, T, and S related? |
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If a process is enthalpically favored but entropically unfavored, will the ΔG be more positive or more negative at a higher temperature? |
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Definition
ΔG will be more positive at a higher temperature. |
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Term
For a process making a favorable bonding interaction, what is the sign of ΔH? |
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Does cooked spaghetti have more or less entropy than uncooked spaghetti? |
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At equilibrium what is the difference in free energy between products and reactants? |
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The ratio of products to reactants at equilibrium. |
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The ratio of products to reactants at any point in the reaction. |
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How are ΔG and Q related? |
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What is ΔG at equilibrium? |
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If Q is greater than K, at what direction will a reaction proceed? |
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Definition
To the left (towards reactants). |
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How can you predict whether products or reactants will be higher in concentration at equilibrium? |
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Definition
If Keq<0, then more(higher concentration) reactants. If Keq>0, then more(higher concentration) products |
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Definition
The free energy change of a reaction when all of the reactions and products are in the standard state. |
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Definition
Free energy change at biochemistry standard state. T=25oC, P=1 atm, A=1. |
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Does a carboxylic acid group accept/donate a hydrogen bond? |
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Definition
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Draw out carboxylic acid and indicate which atoms accept and donate hydrogen bonds. |
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Is a C-H bond hydrophobic or hydrophilic? |
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Which atom in an O-H bond is positive? |
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Definition
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Which atom in an O-H bond is negative? |
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What does the term amphiphilic mean? |
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Definition
A molecule is both hydrophobic and hydrophilic. |
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Definition
Description of how hydrophobic molecules interact and release water from clathrate cages increasing the entropy of water. |
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Which force contributes more to the interaction of hydrophobic molecules in water: enthalpic attractions, or entropy? |
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Definition
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Which force contributes more to the interaction of hydrophobic molecules in water: enthalpic attractions, or entropy? |
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Bond strength of a covalent bond? |
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Bond strength of ionic interaction? |
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Bond strength of Hydrogen Bond? |
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Bond strength for Dipole-dipole Interactions |
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Bond strength of London Dispersion forces? |
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Does methane make stronger enthalpic reactions with water or benzene? |
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