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16 Cards in this Set
- Front
- Back
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what is the first law of thermodynamics:
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energy can neither be created or destroyed
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an endergonic reaction ...
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nonspontaneous reaction and absorbs energy from bonds, do not occur spontaneously
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enthalpy
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the internal energy or chemical bond energy in the form of heat
ΔH ~ ΔE |
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what is the second law of thermodynamics:
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all systems tend toward equilibrium - the lowest energy
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the greater the disorder or randomness in a system, the larger the ...
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entropy
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the third law of thermodynamics states that:
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the entropy content of a system can only be zero at 0 degrees Kelvin
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in this equation below:
ΔH - TΔS = 0 the 0 represents what? |
free energy
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ΔH represents
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change in enthalpy
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TΔS represents
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change in entropy
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at equilibrium what is going on in terms of energy?
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there is energy in the system, but none to do work
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a spontaneous reaction is said to be ...
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exergonic
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an enthalpically favored reaction is said to be ...
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exothermic
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fill in the boxes with either a plus or minus sign:
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(see figure)
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what does this equation represent:
ΔG˚' = ΔH˚' - TΔS˚' |
the standard state
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the standard state is defined to be:
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1 atm
25˚C |
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Keq is the equilibrium constant and is defined as:
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ratio of [B]/[A] where B is the product and A is the substrate
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