Class notes
... The concept of free energy comes from the need to simultaneously deal with the enthalpy energy and entropy of a system G = H -TS G = U+PV - TS dG= dU + PdV + VdP -TdS -SdT dH = dU +pdV at const temp and pressure G= H -TS ...
... The concept of free energy comes from the need to simultaneously deal with the enthalpy energy and entropy of a system G = H -TS G = U+PV - TS dG= dU + PdV + VdP -TdS -SdT dH = dU +pdV at const temp and pressure G= H -TS ...
2nd Semester Chemistry Terms - Glancy 4TH PERIOD PHYSICAL
... 33. Half-life- the time required for half the atoms in a sample of a radioactive isotope to decay 34. Transmutation- the conversion of an atomic nucleus of one element into an atomic nucleus of another element through a loss or gain in the number of protons 35. Nuclear fission- the splitting of the ...
... 33. Half-life- the time required for half the atoms in a sample of a radioactive isotope to decay 34. Transmutation- the conversion of an atomic nucleus of one element into an atomic nucleus of another element through a loss or gain in the number of protons 35. Nuclear fission- the splitting of the ...
Chapter 1 Student Notes
... All matter is composed of about 118 different kinds of atoms. These atoms can be physically mixed or chemically joined together to make up all kinds of matter. Atom the smallest unit of an element that maintains the properties of that element. Since matter exists in so many different forms, having ...
... All matter is composed of about 118 different kinds of atoms. These atoms can be physically mixed or chemically joined together to make up all kinds of matter. Atom the smallest unit of an element that maintains the properties of that element. Since matter exists in so many different forms, having ...
Chemical Equations and Reactions
... To complete this chemical equation, we must account for the law of conservation of mass. The amounts of reactants and products need to be adjusted so that the numbers and types of atoms are the same on both sides of the equation. This process is called balancing an equation and is done by insertin ...
... To complete this chemical equation, we must account for the law of conservation of mass. The amounts of reactants and products need to be adjusted so that the numbers and types of atoms are the same on both sides of the equation. This process is called balancing an equation and is done by insertin ...
Unit 5 Practice Problems (with answers at end) - H
... Unit 5 Practice Problems (with answers at end) I use not only the brains I have, but all I can borrow. --Woodrow Wilson ...
... Unit 5 Practice Problems (with answers at end) I use not only the brains I have, but all I can borrow. --Woodrow Wilson ...
Sample
... Samples questions for advanced chemistry G12 This review is meant to help you sort through the different types of questions that meet the standards ...
... Samples questions for advanced chemistry G12 This review is meant to help you sort through the different types of questions that meet the standards ...
Science, Systems, Matter, and Energy
... atoms or molecules in the pan’s bottom to vibrate faster. The vibrating atoms or molecules then collide with nearby atoms or molecules, causing them to vibrate faster. Eventually, molecules or atoms in the pan’s handle are vibrating so fast it becomes too hot to touch. ...
... atoms or molecules in the pan’s bottom to vibrate faster. The vibrating atoms or molecules then collide with nearby atoms or molecules, causing them to vibrate faster. Eventually, molecules or atoms in the pan’s handle are vibrating so fast it becomes too hot to touch. ...
Balancing Chemical Equations
... skeleton equation = formulas of the reactants & products only, no balancing of # of atoms due to the Law of Conservation of Mass, mass of reactants = mass of products o we cannot change the formulas therefore we must change the number of molecules o we do this by adding coefficients in front of th ...
... skeleton equation = formulas of the reactants & products only, no balancing of # of atoms due to the Law of Conservation of Mass, mass of reactants = mass of products o we cannot change the formulas therefore we must change the number of molecules o we do this by adding coefficients in front of th ...
Chemistry Final - Practice Test I
... An atom of one or more substances are rearranged to form different substances b. Law of Definite Proportions (not Law of Conservation of Matter) A compound contains the same elements in exactly the same proportions by mass regardless of the size of the sample or source of the compound. c. Balanced C ...
... An atom of one or more substances are rearranged to form different substances b. Law of Definite Proportions (not Law of Conservation of Matter) A compound contains the same elements in exactly the same proportions by mass regardless of the size of the sample or source of the compound. c. Balanced C ...
Entropy, free energy and equilibrium
... Matter disperses – gas fills a container, two liquids mix Heat disperses – hot object cools on cold surface Motion disperses – a ball stops bouncing The reverses of these three well known processes never occur spontaneously ...
... Matter disperses – gas fills a container, two liquids mix Heat disperses – hot object cools on cold surface Motion disperses – a ball stops bouncing The reverses of these three well known processes never occur spontaneously ...
1 - UCSB C.L.A.S.
... 1. Define the following: a. energy b. kinetic energy c. potential energy d. first law of thermodynamics e. work f. heat g. system vs surroundings h. open system, closed system and isolated system i. enthalpy j. Cv k. Cp 2. Predict whether q, w, and ΔE are positive, negative or zero for: a. heating 2 ...
... 1. Define the following: a. energy b. kinetic energy c. potential energy d. first law of thermodynamics e. work f. heat g. system vs surroundings h. open system, closed system and isolated system i. enthalpy j. Cv k. Cp 2. Predict whether q, w, and ΔE are positive, negative or zero for: a. heating 2 ...
GENERAL CHEMISTRY SECTION IV: THERMODYNAMICS
... system” can be hard because us humans are the surroundings, but we tend to think of things from our own perspectives. So if you’re thinking of whether you are losing or gaining something (like heat, for instance), you’ll be thinking of every sign in thermo backwards, because as the surroundings, if ...
... system” can be hard because us humans are the surroundings, but we tend to think of things from our own perspectives. So if you’re thinking of whether you are losing or gaining something (like heat, for instance), you’ll be thinking of every sign in thermo backwards, because as the surroundings, if ...
Chapter 4 - U of L Class Index
... tells us what compounds we started with (reactants), what we did to them (reaction conditions) and what compounds we ended up with (products). ...
... tells us what compounds we started with (reactants), what we did to them (reaction conditions) and what compounds we ended up with (products). ...
Thermodynamics
... Conduction – by molecular collisions If heat is transferred through a substance l ...
... Conduction – by molecular collisions If heat is transferred through a substance l ...
Name
... List and describe the factors that affect the rates of chemical reactions? Give examples of each. ...
... List and describe the factors that affect the rates of chemical reactions? Give examples of each. ...
Second Year Chemistry
... Ethanol is brought to the boil at 1 atm. When the electric current of 0.682 A from a 12.0 V supply is passed for 500 s through a heating coil immersed in the boiling liquid, it is found that the temperature remains constant but 4.33 g of ethanol is vapourised. What is the enthalpy of vapourisation ...
... Ethanol is brought to the boil at 1 atm. When the electric current of 0.682 A from a 12.0 V supply is passed for 500 s through a heating coil immersed in the boiling liquid, it is found that the temperature remains constant but 4.33 g of ethanol is vapourised. What is the enthalpy of vapourisation ...
Chapter 12
... The work done on a gas that takes it from some initial state to some final state is the negative of the area under the curve on the PV diagram ...
... The work done on a gas that takes it from some initial state to some final state is the negative of the area under the curve on the PV diagram ...
Instructor: Hacker Engineering 232 Sample Exam 1 Solutions Answer Key
... where he was a clerk. Were it not for conservation of mechanical energy he would have been late for his job, and replaced by his competitor Rob. Problem 14. If heat is added to a system and the temperature of a system increases, without knowing anything else, which form of energy will be definitely ...
... where he was a clerk. Were it not for conservation of mechanical energy he would have been late for his job, and replaced by his competitor Rob. Problem 14. If heat is added to a system and the temperature of a system increases, without knowing anything else, which form of energy will be definitely ...
Chemical thermodynamics
Chemical thermodynamics is the study of the interrelation of heat and work with chemical reactions or with physical changes of state within the confines of the laws of thermodynamics. Chemical thermodynamics involves not only laboratory measurements of various thermodynamic properties, but also the application of mathematical methods to the study of chemical questions and the spontaneity of processes.The structure of chemical thermodynamics is based on the first two laws of thermodynamics. Starting from the first and second laws of thermodynamics, four equations called the ""fundamental equations of Gibbs"" can be derived. From these four, a multitude of equations, relating the thermodynamic properties of the thermodynamic system can be derived using relatively simple mathematics. This outlines the mathematical framework of chemical thermodynamics.