Gibbs equation Study guides, Class notes & Summaries

AQA A-level CHEMISTRY 7405/3 Paper 3 Question Paper + Mark scheme [MERGED] June 2022 *JUN* IB/M/Jun22/E16 7405/3 For Examiner’s Use Question Mark 1 2 3 4 5 Section B TOTAL Time allowed: 2 hours Materials For this paper you must have: • the Periodic Table/Data Booklet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions • Use black ink or black ball-point...

Keq determined by... Correct Answer-chemical stability of reactants and products Gibbs free energy equation Correct Answer-▲G=▲H-T▲S thermodynamic coupling Correct Answer-pair favorable w/ unfavorable reaction ie hydrolysis of ATP what is driving force in all biochem reactions Correct Answer-water _____________ &_______________ structure depend on H2O interaction Correct Answer-protein and membrane properties of water Correct Answer-high viscosity, high bp, high heat of vap...

Rf value correct answers Distance travelled by substance / distance travelled by solvent Thin lens equation correct answers 1/f = 1/O + 1/I Ohm's law correct answers V=IR Volts Index of refraction correct answers n=c/v Energy of a photon correct answers E=hf Joules Work correct answers W = force x distance Joules Ideal Gas Law Equation and assumptions correct answers PV=nRT Intermolecular forces are negligible Individual molecular volume is negligible STP conditions ...

What is the First Law of Thermodynamics?conservation of energy- cannot be created nor destroyed What is Chemical Potential Energy?electronegativity, an electron has a high CPE when it is far from the positive nucleus What is the Second Law of Thermodynamics?change of direction, entropy is high in a less organized state How can we use the Second Law of Thermodynamics to determine whether or not a reaction is spontaneous?Gibbs Free Energy equation an exergonic reaction releases gibbs e...

(3) theories of fermentation - substrate (yeast brought chemicals to surface), physiological (fermentation took place inside yeast), mechanistic (7) characteristics of living organisms - ROMGRAH - reproduction, organization, metabolism, growth, respond to stimuli, adaptation, homeostasis 1 Cal =? - 4.184 J a state of more disorder is _______ - state of less potential energy anabolic processes - require energy, coupled to ATP hydrolysis blending - mechanical blades catabolic processes - r...

What is a virus? - a protein body made up of a capsid with DNA or RNA in it Viruses go in a host, then.. - go through replication and assembly the host cell membrane is draped over the virus as the.. - virus squeezes out through the cell wall a naked virus does not have.. - envelope what is covid 19 - a respiratory virus because the receptor it uses to get inside the body is only found in the lungs (ace 2) what did we not know about covid 19? - -causes an overzealous inflammation in your l...

CEM 142 Exam 1 Latest Version Already Graded A Open system mass/matter as well as energy can flow in and out of the system closed system mass/matter can not flow into the system but energy can flow in and out of the system isolated system nothing can enter or leave the system what is the difference between state and path function State function depend only on the initial and final states but not the path taken while a path function requires multiple steps and proofs to get to t...

What is the most important thing change in Gibbs free energy tells us? What does a negative value mean and what does a positive value mean? Ans how spontaneous a reaction is negative delta G = spontaneous, energy is released, exergonic positive delta G = non-spontaneous, energy is consumed, endergonic what does enthalpy represent? what does it mean when it's positive vs negative? Ans delta H is change in enthalpy, which is the heat content of the reacting system. It reflects the number ...

What happens in a spontaneous reaction? - correct answer the total entropy of the universe must increase. Change in Free Energy - correct answer -tells position and direction of a reaction -easier to calculate than entropy 1st law of thermodynamics - correct answer the energy of the universe is constant. (any energy lost by system is gained by surroundings and vice versa) 2nd law of thermodynamics - correct answer the entropy of the universe increases in any spontaneous process 3rd ...

Energy is neither ____ or ____. It simply ________. Created, destroyed, changes form What are the 2 types of energy? Kinetic, Potential Kinetic Energy (def, @molecular lvl) Energy of Motion; Thermal Energy (heat production through consistent motion) Potential Energy (def, @molecular lvl) Energy of position/configuration, stored energy; Chemical energy is stored Where do electrons have the greatest potential energy? In the outermost electron shells Free energy Amount of energy available to d...