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Thermodynamics

Metric System

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Chemistry
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Chemistry
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Units of energy
Calorie
International System of Units
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Metric System
Joules
Kelvins

Conversions Regarding the Metric System and some Associated Formulas By Toomuchswag Sources: My Chemistry Notes and http://www.simetric.co.uk/siprefix.htm for some verification Most of the world besides the United States uses the metric system, a much simpler measuring tool according to many. The Metric system works in powers of ten: The prefixes work like this: Kilo Hecto Deca R (this is the regular unit, be it meters, grams, etc. we have given it the letter R) Deci Centi Milli Some important formulas: Density: Mass/Volume 1calorie or cal is the amount of energy required to raise the temperature of water by 1 degree Celsius

Gas Laws Notes

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Units of pressure
Measurement
Physics
Atmospheric thermodynamics
Thermodynamics
Underwater diving
State functions
Torr
Pascal
Pressure
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Pressure
Volume
Temperature
Charles' Law
Properties of Gases
Effusion
Graham's Law of Effusion

Gas Laws Properties of Gases Fluids Low density Highly compressible Completely fill a container and exert pressure in all directions Pressure the force exerted per unit of area Units of pressure: kilopascal (kPa) atmosphere (atm) torr (torr) millimeters of mercury (mmHg) pounds per square inch (psi) 1 atm = 760 mm Hg = 760 torr = 101 kPa Pressure and Volume How are pressure and volume of a gas related? Think about the demos yesterday. What are the words we use for this relationship? What would a graph look like? Pressure and Volume Boyle?s Law: the volume of a certain mass of gas at constant temperature is inversely proportional to the pressure applied to the gas P1V1 = P2V2 P V

Thermodynamics Lab Report

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thermodynamics

Emily Dinnerman?s Sean Mannix Mr. Tenenbaum Period 5 3/8/11 Thermodynamics?Chill Out Lab Report Purpose: To measure and record changes in the heat (enthalpy) content of a liquid (water) as a part of the system (ice cube) melts in that system (the water plus the ice cube). Materials: Ice cubes (1) Styrofoam cups (2) Thermometer [Access to] hot water Procedure: Measure out 50 mL (roughly?just record exactly how much) of hot water from the sink and pour into the Styrofoam cup. Measure the temperature and record the value. Add an ice cube and monitor the temperature in the mixture until the ice cube is completely melted. Record the temperature. Measure the final volume of the water left and record the value. Data: Unit Measurement Change in volume Change in temperature

harvesting energy from food

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Biology
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Chemical thermodynamics
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Endergonic
Exergonic reaction
Exergonic
Energy
CNote
Technology

Harvesting Energy from Food Cellular respiration involves catabolic pathways. Substances are being broken down. Pathways are exergonic. Couple an endergonic reaction with an exergonic reaction ADP + PI ? ATP 2 catabolic pathways covered that are exergonic and release energy to power endergonic reaction Cellular respiration begins with glucose. Aeorbic Fermentation begins with glucose. Anaerobic
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Laws of Thermodynamics

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The Zeroth Law There are four laws of thermodynamics which build upon each other. They are numbered 0 through 3 because the most fundamental law was discovered after the First Law had already been given the number 1. Therefore, they had to assign the most fundamental law the number 0. The Zeroth Law simply says there is no heat flow between objects that are the same temperature. In essence, the Zeroth Law is just a definition of what temperature is.

Reactions and Enzymes

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Biology
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Thermodynamics
Chemical thermodynamics
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State functions
Thermochemistry
Endergonic
Exergonic reaction
Exergonic
Energy
Entropy

Endergonic and exergonic | Back to Top Energy releasing processes, ones that "generate" energy, are termed exergonic reactions. Reactions that require energy to initiate the reaction are known as endergonic reactions. All natural processes tend to proceed in such a direction that the disorder or randomness of the universe increases (the second law of thermodynamics). Time-energy graphs of an exergonic reaction (top) and endergonic reaction (bottom). Images from Purves et al., Life: The Science of Biology, 4th Edition, by Sinauer Associates (www.sinauer.com) and WH Freeman (www.whfreeman.com), used with permission. Oxidation/Reduction | Back to Top

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