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☆☆☆☆☆Cards in this guide (13)
What is Gibbs Free energy
The usable energy released or absorbed by a reaction.
How does temperature affect the spontaneity of a reaction
if H and S have the same sign the temperature will determine spontaneity
How is an exothermic reaction identified
It gives off heat as a product.
Which of the following is a statement of Hess's law
The enthalpy of reaction does not depend on the steps taken in the reaction.(Apex)
How does the phase of water affect its specific heat capacity
Liquid water has the highest specific heat capacity.
What most determines the entropy of a solid
The crystalline structure of the solid most determine the entropy of a solid.
What is the value for G at 100 K if H equals 27 kJ mol and S equals 0.09 kJ molK
G = 18 kJ/mol
What is the value for G at 300 K if H 27 kJmol and S 0.09 kJmolK
G = 0 kJ/mol
What does S0 mean
the system has become more random
How is the H fusion used to calculate the mass of solid that 1kJ of energy will melt
1kj x 1/H fusion x g/mol solid
Would form a spontaneous reaction at 298k
Not B
What does the second law of thermodynamics say apex
The entropy of the universe is increasing
Which reaction shows that the enthalpy of formation of H2S is Hf -20.6 kJmol
H2(g) + S(s) —> H2S + 20.6 kJ
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