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Chemistry

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Keira Boyle

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4y ago
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Cards in this guide (10)
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 is the mass defect

If you add the exact mass of the protons, neutrons, and electrons in an atom you do not get the exact atomic mass of the isotope. The diference is called the mass defect. The difference between the mass of the atomic nucleus and the sum of the masses of the particles within the nucleus is known as the mass defect.

What is entropy and which phase of matter has the the highest entropy

Plasma

How does temperature affect the spontaneity of a reaction

if H and S have the same sign the temperature will determine spontaneity

How does entropy change in gas reactions

Reactions that increase the moles of gas will increase in entropy.

What information does Gibbs free energy give about a reaction

It tells if the reaction will process spontaneously or not

What would happen to the rate of a reaction with rate law kNO2H2 if the concentration of NO were doubled

the rate would be four times larger. apex

What best describes a radioisotope

its nucleus is unstable

How much energy is released is a sample loses 0.05 kg mass through radioactive decay

4.5 × 1015 J

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