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Chemistry

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Makenzie Kautzer

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2y ago
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Cards in this guide (16)
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 •

Is plastic a thermal conductor or insulator

It is a thermal insulator

What defines an exothermic reaction

A reaction that produces heat

What does the enthalpy of reaction measure

The amount of energy that is used or released as heat in a reaction.

What does the difference in potential energy between the reactants and products represent

It represents the change in enthalpy for the reaction.

How does the phase of water affect its specific heat capacity

Liquid water has the highest specific heat capacity.

How is heat included in the equation of an exothermic reaction

Heat is written as a product of the reaction (apecs answer)

What determines how fast a reaction happens

Kinetics

Which of the following reactions shows that the formation of NO2 requires 33.1 kJ mol

1/2 N2(g) + O2(g) + 33.1 kJ NO2(g)

What does S0 mean

the system has become more random

What describes the entropy change as a solution is made from a liquid to a solid

S > 0

What is revealed in the reaction CaOH2s Ca2 aq 2OH-aq

The reaction produces heat.

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

What is heat included in the equation of an endothermic reaction

The heat in an endothermic reaction is included as a reactant on the left side of the equation, and has a positive value.

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