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Chemistry

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Marisa Predovic

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Cards in this guide (14)
What is thermal energy

The total kinetic energy of the particles in a system

What is thermodynamics

the study of the movement of energy and heat.

or

Thermodynamics is the branch of physics concerned with the conversion of different energy forms.

•DeltaG (rxn) = DeltaG (pdts) - DeltaDG (rcts) •DeltaG°(rxn) = -R T ln K •

What are quarks

Quarks are any of a group of subatomic particles thought to be among the fundamental constituents of matter more specifically, of protons and neutrons.

The concept of the quark was first proposed by Murray Gell-Mann and George Zweig ; its name was taken from James Joyce's novel Finnegans Wake. Quarks include all particles that interact by means of the strong force. They have mass and spin, and they obey the Pauli exclusion principle. They have never been resolved into smaller components, and they never occur alone. Their behaviour is explained by the theory of quantum chromodynamics, which provides a means of calculating their basic properties. There are six types of quarks, called up, down, strange, charm, bottom, and top. Only the up and down quarks are needed to make protons and neutrons; the others occur in heavier, unstable particles. Subatomic particles that make up protons and neutrons

Who created the model of the atom that has quantizied levels of energy
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.

Use the reaction I2s I2 g H 62.4 kJ mol S 0.145 kJ molK for Question 10. Which direction of the reaction is favored at 298 K room temperature

It is spontaneous at 2000 K.

What determines how fast a reaction happens

Kinetics

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

What would result in a transmutation

An alpha particle being emitted would result in a transmutation.

How is the delta H fusion used to calculate volume of liquid

It is not. The density and mass would be used to find the volume.

How is the H fusion used to calculate the energy released when a mass of liquid freezes

grams liquid x mol/g x H fusion

What does the second law of thermodynamics say apex

The entropy of the universe is increasing

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