Thermodynamics Flashcards Preview

AP Chemistry > Thermodynamics > Flashcards

Flashcards in Thermodynamics Deck (22):
1

A measure of the average kinetic energy of atoms and molecules in a system

Temperature

2

What is the equation for kinetic energy?

(1/2)mv^2

3

As velocity increases, temperature ____________ as long as the mass remains constant

Increases

4

As kinetic energy increases, velocity ___________

increases

5

How do you convert Celsius to Kelvin?

K= C+273

6

The distribution of kinetic energy increases as temperature ___________

Increases

7

Energy is transferred from a _______ kinetic energy system to a _________ kinetic energy system

High, low

8

The actual chemical reaction that is taking place

System

9

The entire universe outside of the chemical reaction

Surroundings

10

If heat is transferred into the system it is shown by a _____

+

11

If heat is transferred out of an energy system is is shown by a ___

-

12

The products in an endothermic reaction have ________ potential energy

More

13

The products in an endothermic reaction have _______ kinetic energy

Less

14

Touching an endothermic reaction feels ________

Cold

15

The products of an exothermic reaction contain ______ potential energy

Less

16

The products of a exothermic reaction contain _____ kinetic energy

More

17

Exothermic reactions feel ______

Hot

18

The heat that is released or absorbed in a chemical reaction

Enthalpy of reaction

19

When the heat contained within the products is greater than the heat contained within the reactants the reaction is ___________

Endothermic (+)

20

When the heat of the reactants is greater than the heat of the products, the reaction is ___________

Exothermic (-)

21

Energy is always __________ during the formation of a bond

Released

22

A form of energy measured in joules

Heat