- Gibbs Free Energy G Is A Measure Of The Spontaneity Of A Chemical Reaction It Is The Chemical Potential For A Reactio 1 (187.55 KiB) Viewed 58 times
- Gibbs Free Energy G Is A Measure Of The Spontaneity Of A Chemical Reaction It Is The Chemical Potential For A Reactio 2 (274.32 KiB) Viewed 58 times
Gibbs free energy (G) is a measure of the spontaneity of a chemical reaction. It is the chemical potential for a reaction, and is minimized at equilibrium. It is defined as G=H-TS where H is enthalpy, Tis temperature, and S is entropy. The chemical reaction that causes chromium to corrode in air is given by 4Cr +302-2Cr₂O3 in which at 298 K, AH = -2256 kJ and ASin = 549.1 J/K Part A What is the standard Gibbs free energy for this reaction? Assume the commonly used standard reference temperature of 298 K. Express your answer as an integer and include the appropriate units. View Available Hint(s) AGIX Submit 383 Previous Answers kJ O X Incorrect; Try Again: 5 attempts remaining ?
Gibbs free energy (G) is a measure of the spontaneity of a chemical reaction. It is the chemical potential for a reaction, and is minimized at equilibrium. It is defined as G H TS where H is enthalpy, Tis temperature, and S is entropy The chemical reaction that causes chromium to corrode in air is given by 4Cr+302-2Cr₂O3 2256 kJ and in which at 298 K, AH AS = -549.1 J/K Part B What is the Gibbs free energy for this reaction at 4717 K? Assume that AH and AS do not change with temperature Express your answer to two decimal places and include the appropriate units. ▸View Available Hint(s) AGrxn= Submit Part C μA Value Teq= Value 1 G At what temperature Teq do the forward and reverse corrosion reactions occur in equilibrium? Express your answer as an integer and include the appropriate units. > View Available Hint(s) C C d Units 52 ?