Thermodynamics
... Adiabatic Changes • q=0! • Therefore ΔU = w • In adiabatic changes, we can expect the temperature to change. • Adiabatic changes can be expressed in terms of two steps: the change in volume at constant temperature, followed by a change in temperature at constant volume. ...
... Adiabatic Changes • q=0! • Therefore ΔU = w • In adiabatic changes, we can expect the temperature to change. • Adiabatic changes can be expressed in terms of two steps: the change in volume at constant temperature, followed by a change in temperature at constant volume. ...
Iodine Clock Reaction and Photochemical Reduction
... A plot of log (V - Vt ) versus t is a straight line showing first order reaction. Slope of the curve will be equal to k obs/2.303 from which k obs can be determined. For energy of activation, E, plot of log k against 1/T will give a straight line and slope is equal to – E/2.303R. From the slope, E c ...
... A plot of log (V - Vt ) versus t is a straight line showing first order reaction. Slope of the curve will be equal to k obs/2.303 from which k obs can be determined. For energy of activation, E, plot of log k against 1/T will give a straight line and slope is equal to – E/2.303R. From the slope, E c ...
Standard Thermodynamic Functions of Reaction
... The standard enthalpy of combustion of a substance is for the reaction in which 1 mole of the substance is burned in O2. For example; for solid glycine is for reaction in Example 5.1. ...
... The standard enthalpy of combustion of a substance is for the reaction in which 1 mole of the substance is burned in O2. For example; for solid glycine is for reaction in Example 5.1. ...
Acid Rain - Controlled Assessment
... Rate is a measure of how fast or slow something is. In chemistry, we speak of a rate of reaction, this tells us how fast or slow a reaction is. Why do chemists want to know the rate of a reaction? If you are making a product, it is important to know how long the reaction takes to complete, before th ...
... Rate is a measure of how fast or slow something is. In chemistry, we speak of a rate of reaction, this tells us how fast or slow a reaction is. Why do chemists want to know the rate of a reaction? If you are making a product, it is important to know how long the reaction takes to complete, before th ...
Review Station Ideas
... __B___ KOH __B___ increases [OH-] __A___ turns cabbage juice red __A___ increases [H+] __B___ tastes bitter __A___ H2SO3 __N___ cabbage juice stays purple __B___ NaHCO3 (baking soda) ...
... __B___ KOH __B___ increases [OH-] __A___ turns cabbage juice red __A___ increases [H+] __B___ tastes bitter __A___ H2SO3 __N___ cabbage juice stays purple __B___ NaHCO3 (baking soda) ...
Review Session Handout from 10/6
... many joules of energy are absorbed by the water, and how many by the silver? ...
... many joules of energy are absorbed by the water, and how many by the silver? ...
Prof. Kamakaka`s Lecture 1 Notes
... Water spontaneously dissociates into H+ and OH(Water molecules can function as both acids and bases) H2O is in equilibrium with H+ and OHThe dissociation constant for water is 1.8x10-16 Concentration of H+ in water is pH is negative logarithm (base 10) of the molar concentration of hydrogen ions (H+ ...
... Water spontaneously dissociates into H+ and OH(Water molecules can function as both acids and bases) H2O is in equilibrium with H+ and OHThe dissociation constant for water is 1.8x10-16 Concentration of H+ in water is pH is negative logarithm (base 10) of the molar concentration of hydrogen ions (H+ ...
CD Roms - 香港道教聯合會圓玄學院第一中學
... our daily life. (VA) - Application of catalyst on our daily life. Experiment 14 (CO)(RL) (EL) To determine the activation energy of the reaction Cycle between bromide and bromate(V) in acidic medium. ...
... our daily life. (VA) - Application of catalyst on our daily life. Experiment 14 (CO)(RL) (EL) To determine the activation energy of the reaction Cycle between bromide and bromate(V) in acidic medium. ...
CHEM1001 2012-J-2 June 2012 22/01(a) • Complete the following
... dispersion and dipole-dipole forces in the other compounds and hence these two compounds have the highest boiling points. CH3CH2OH has more dispersion forces than CH3OH, so it has the highest boiling point. • Melting points of the hydrogen halides increase in the order HCl < HBr < HF < HI. ...
... dispersion and dipole-dipole forces in the other compounds and hence these two compounds have the highest boiling points. CH3CH2OH has more dispersion forces than CH3OH, so it has the highest boiling point. • Melting points of the hydrogen halides increase in the order HCl < HBr < HF < HI. ...
Regents Chemistry
... o rule of thumb: ‘like dissolves like’ o know that alcohols have characteristics of both polar & non-polar liquids but do not dissolve ionic compounds Determine how soluble a compound is at a given temperature using the solubility traces found in Table G o use solubility curves to predict how much w ...
... o rule of thumb: ‘like dissolves like’ o know that alcohols have characteristics of both polar & non-polar liquids but do not dissolve ionic compounds Determine how soluble a compound is at a given temperature using the solubility traces found in Table G o use solubility curves to predict how much w ...
Original powerpoint (~1.9 MB)
... undissociated MgF2 (aq) and MgF- ion pairs means that not all of the solid that has dissolved is found as free ions, so our ionic concentrations are LOWER than we assumed, and so Ksp is actually smaller than we calculated. ...
... undissociated MgF2 (aq) and MgF- ion pairs means that not all of the solid that has dissolved is found as free ions, so our ionic concentrations are LOWER than we assumed, and so Ksp is actually smaller than we calculated. ...
Chapter 4 The First Law - Physics | Oregon State University
... infinitesimal steps, continually passing through equilibrium states. Moreover, it is conceivable that at any point a single grain of sand could be returned to the pile and exactly restore the previous equilibrium state. Such a real or idealized infinitesimal process is called quasi-static. A quasi-s ...
... infinitesimal steps, continually passing through equilibrium states. Moreover, it is conceivable that at any point a single grain of sand could be returned to the pile and exactly restore the previous equilibrium state. Such a real or idealized infinitesimal process is called quasi-static. A quasi-s ...
Syllabus
... Course Website at http://supa.syr.edu/Subjects/Chemistry/syllabi/ INTRODUCTION AND LEARNING GOALS - Whether we like it or not, we live in a dynamic chemical universe. Chemical properties and reactions influence our every action (and reaction). We rely upon chemical properties and reactions to both s ...
... Course Website at http://supa.syr.edu/Subjects/Chemistry/syllabi/ INTRODUCTION AND LEARNING GOALS - Whether we like it or not, we live in a dynamic chemical universe. Chemical properties and reactions influence our every action (and reaction). We rely upon chemical properties and reactions to both s ...
Chapter 18 review
... ____ 13. Which one of the following systems has the highest entropy? a. 10 mL of water at 10°C b. 10 mL of water at 50°C c. 10 mL of water at 100°C d. All have the same entropy because all are water. ____ 14. The Ks p of Ca(OH)2 is 6.5 × 10-6 and Ca(NO3 ) 2 is a soluble compound. How does the additi ...
... ____ 13. Which one of the following systems has the highest entropy? a. 10 mL of water at 10°C b. 10 mL of water at 50°C c. 10 mL of water at 100°C d. All have the same entropy because all are water. ____ 14. The Ks p of Ca(OH)2 is 6.5 × 10-6 and Ca(NO3 ) 2 is a soluble compound. How does the additi ...
full text - pdf 452 kB
... This requires a knowledge of log K at the conditions (temperature, pressure, ionic strength) of the reaction. The log K values as well as the other thermodynamic quantities such as the AH,AS and ACp values associated with reactions in aqueous solutions can change in a dramatic fashion with temperatu ...
... This requires a knowledge of log K at the conditions (temperature, pressure, ionic strength) of the reaction. The log K values as well as the other thermodynamic quantities such as the AH,AS and ACp values associated with reactions in aqueous solutions can change in a dramatic fashion with temperatu ...
Example - Request a Spot account
... Chemical Equations (Intro) 1. Chemical equations are used to symbolically describe chemical reactions 2. In a chemical equation (or reaction for that matter) the substances that undergo chemical change(s) are called the reactants 3. The resulting substances formed are called the products 4. The sta ...
... Chemical Equations (Intro) 1. Chemical equations are used to symbolically describe chemical reactions 2. In a chemical equation (or reaction for that matter) the substances that undergo chemical change(s) are called the reactants 3. The resulting substances formed are called the products 4. The sta ...
Equilibrium chemistry
Equilibrium chemistry is a concerned with systems in chemical equilibrium. The unifying principle is that the free energy of a system at equilibrium is the minimum possible, so that the slope of the free energy with respect to the reaction coordinate is zero. This principle, applied to mixtures at equilibrium provides a definition of an equilibrium constant. Applications include acid-base, host-guest, metal-complex, solubility, partition, chromatography and redox equilibria.