Outline Introduction State Functions Energy, Heat, and Work
... function depends only on thermodynamic state of the system (e.g. P, V, T for a simple system). q – energy added to the system as heat. Positive (+) when the system gains heat from outside (……………. process), negative (-) when heat flows out of the system (……………. process). w - work done by the system o ...
... function depends only on thermodynamic state of the system (e.g. P, V, T for a simple system). q – energy added to the system as heat. Positive (+) when the system gains heat from outside (……………. process), negative (-) when heat flows out of the system (……………. process). w - work done by the system o ...
LESSON ASSIGNMENT LESSON 2 Elements of Chemical Change
... atom-to-atom ratio can always be expressed in simple, whole numbers. Chemical changes do not split atoms into fractional pieces. This is the reason we are able to write a formula such as HCl for the compound hydrochloric acid. Hydrochloric acid is always formed from one atom of hydrogen and one atom ...
... atom-to-atom ratio can always be expressed in simple, whole numbers. Chemical changes do not split atoms into fractional pieces. This is the reason we are able to write a formula such as HCl for the compound hydrochloric acid. Hydrochloric acid is always formed from one atom of hydrogen and one atom ...
Chemical Compounds
... The equation must be consistent with Lavoisier's law of conservation of mass. The total number of atoms of each element must be the same in the products and reactants. When this condition is satisfied we say the equation is balanced. CH4(g)+O2(g) → CO2(g) +H2 O(g) (unbalanced!) CH4(g)+2O2(g) → CO2(g ...
... The equation must be consistent with Lavoisier's law of conservation of mass. The total number of atoms of each element must be the same in the products and reactants. When this condition is satisfied we say the equation is balanced. CH4(g)+O2(g) → CO2(g) +H2 O(g) (unbalanced!) CH4(g)+2O2(g) → CO2(g ...
Answer
... Show that this reaction is spontaneous at 25 C. Using G° = H° - TS°, G° = (-198.4×103 J mol-1) – ((25+273) K) ×(-187.9 J mol-1) = -142400 J mol-1 = -142.4 kJ mol-1 As G° < 0, the reaction is spontaneous. If the volume of the reaction system is increased at 25 C, in which direction will the re ...
... Show that this reaction is spontaneous at 25 C. Using G° = H° - TS°, G° = (-198.4×103 J mol-1) – ((25+273) K) ×(-187.9 J mol-1) = -142400 J mol-1 = -142.4 kJ mol-1 As G° < 0, the reaction is spontaneous. If the volume of the reaction system is increased at 25 C, in which direction will the re ...
Boundless Study Slides
... • thermal equilibrium Two systems are in thermal equilibrium if they could transfer heat between each other, but don't. • thermodynamic temperature Temperature defined in terms of the laws of thermodynamics rather than the properties of a real material: expressed in kelvins. • thermodynamics a branc ...
... • thermal equilibrium Two systems are in thermal equilibrium if they could transfer heat between each other, but don't. • thermodynamic temperature Temperature defined in terms of the laws of thermodynamics rather than the properties of a real material: expressed in kelvins. • thermodynamics a branc ...
Physical chemistry - MCQ topic quiz
... Incorrect. Concentrations are constant because forward and backward reactions are equal. Your answer ...
... Incorrect. Concentrations are constant because forward and backward reactions are equal. Your answer ...
ICE Tables - Chemwiki
... If there is a negative value in the "initial" or "equilibrium" rows, reexamine the calculation. A negative concentration, amount, or partial pressure is physically impossible. Obviously, the "change" row can contain a negative value. Pay attention to the state of each reactant and product. If a comp ...
... If there is a negative value in the "initial" or "equilibrium" rows, reexamine the calculation. A negative concentration, amount, or partial pressure is physically impossible. Obviously, the "change" row can contain a negative value. Pay attention to the state of each reactant and product. If a comp ...
CHEM110P1_06_2015_Y_P1
... then filled with water at 26 °C and found to weigh 942.781 g. (The density of water at 26 °C is 0.9968 g cm–3.) Assuming that the ideal gas equation applies, determine the molar mass of the unknown gas and its identity. (The unknown gas is one of the following: NH3, CO2, CS2, or SO2). ...
... then filled with water at 26 °C and found to weigh 942.781 g. (The density of water at 26 °C is 0.9968 g cm–3.) Assuming that the ideal gas equation applies, determine the molar mass of the unknown gas and its identity. (The unknown gas is one of the following: NH3, CO2, CS2, or SO2). ...
see - The Tom Bearden Website
... established by their associated source charges. However, many assume that the static fields and their potentials just "suddenly are there", all at once, and that there is no motion or energy flow whatsoever, with respect to static fields. Suppose we do a gedanken experiment. If one merely separates ...
... established by their associated source charges. However, many assume that the static fields and their potentials just "suddenly are there", all at once, and that there is no motion or energy flow whatsoever, with respect to static fields. Suppose we do a gedanken experiment. If one merely separates ...
Classical Thermodynamics Written by Jussi Eloranta () (Updated: October 31, 2014)
... = “moles of substance” ...
... = “moles of substance” ...
PowerPoint Presentation - Chemical Equilibrium
... reactions considered until now have had reactants react completely to form products. These reactions “went” only in one direction. Some reactions can react in either direction. They are “reversible”. When this occurs some amount of reactant(s) will always remain in the final reaction mixture. ...
... reactions considered until now have had reactants react completely to form products. These reactions “went” only in one direction. Some reactions can react in either direction. They are “reversible”. When this occurs some amount of reactant(s) will always remain in the final reaction mixture. ...
Unit_4_Notes_
... We can determine the reaction orders of each reactant and then use those to determine the rate law for a reaction. o Keep in mind the relationship between rate orders and concentrations and their effect on rate o The rate of a reaction depends on the concentration but the rate constant (k) does no ...
... We can determine the reaction orders of each reactant and then use those to determine the rate law for a reaction. o Keep in mind the relationship between rate orders and concentrations and their effect on rate o The rate of a reaction depends on the concentration but the rate constant (k) does no ...
Chemistry - Textbooks Online
... Chemistry, a branch of science concerned with the properties, structures and composition of substances and their reactions with one another. Inorganic Chemistry studies the preparation, properties and reactions of all chemical elements and their compounds, except those of carbon. Organic Chemistry s ...
... Chemistry, a branch of science concerned with the properties, structures and composition of substances and their reactions with one another. Inorganic Chemistry studies the preparation, properties and reactions of all chemical elements and their compounds, except those of carbon. Organic Chemistry s ...
Sedimentary Rocks
... • There are four major processes of forming sedimentary rocks • Weathering, Erosion, Deposition, and Compaction/Cementation. • In that order of course. ...
... • There are four major processes of forming sedimentary rocks • Weathering, Erosion, Deposition, and Compaction/Cementation. • In that order of course. ...
Unit 5 Test Review
... produced if a given amount of moles of reactant was reacted. Which quantities would be essential in order to solve such a problem? Bubble in all that apply - but only those that are essential to this calculation. a. The molar mass of the reactant b. The molar mass of the product c. The coefficients ...
... produced if a given amount of moles of reactant was reacted. Which quantities would be essential in order to solve such a problem? Bubble in all that apply - but only those that are essential to this calculation. a. The molar mass of the reactant b. The molar mass of the product c. The coefficients ...
chemistry
... Statement B: Atoms of one element cannot be changed into atoms of another element. Statement C: All atoms of one element have the same mass. 66 Explain, in terms of particles, why statement A is no longer accepted. [1] 67 The decay of N-16 is represented by the balanced equation below. ...
... Statement B: Atoms of one element cannot be changed into atoms of another element. Statement C: All atoms of one element have the same mass. 66 Explain, in terms of particles, why statement A is no longer accepted. [1] 67 The decay of N-16 is represented by the balanced equation below. ...
Probing Conformational Disorder in Neurotensin by Two
... MD simulations were started from a modeled extended conformation of the NT6 peptide. To mimic the experimental conditions, the termini were modeled uncharged by capping the N-terminus with an acetyl group and protonating the C-terminus, respectively. Two simulations were carried out in the GROMOS96 ...
... MD simulations were started from a modeled extended conformation of the NT6 peptide. To mimic the experimental conditions, the termini were modeled uncharged by capping the N-terminus with an acetyl group and protonating the C-terminus, respectively. Two simulations were carried out in the GROMOS96 ...
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.