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☆☆☆☆☆Cards in this guide (17)
What is the specific heat of a substance
The amount of heat a substance can hold.
What is the latent heat of fusion
It is the amount of heat that is required to melt something, and the amount of heat that it gives off when it freezes. (They are the same amount.)
What kind of changes contribute to spontaneity
An increase in entropy.
How is an endothermic reaction identified
It requires heat as a reactant.
What is true of the enthalpy value of an intermediate reaction
It is multiplied by 2 if the intermediate reaction is multiplied by 2
Which of the following describes the entropy change of a gas reaction
If there is an increase in the number of gas molecules, then S > 0.
What most determines the entropy of a solid
The crystalline structure of the solid most determine the entropy of a solid.
How does entropy change in gas reactions
Reactions that increase the moles of gas will increase in entropy.
What does a negative change in entropy indicate
The system has become more ordered.
What determines how fast a reaction happens
Kinetics
Which of the following has the highest entropy Water Ice Water solution or Water vapor
water vapor
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
Which is a statement of the second law of thermodynamics
Entropy tends to increase in a system.
What would happen to the entropy in the reaction 203g 302g
It increases
How much energy is released when 6 g of water is condensed from water vapor
6.212
What does the second law of thermodynamics say apex
The entropy of the universe is increasing
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