Thermodynamic parameters (here the activation energy, enthalpy and entropy) for the release of a certain drug from a tablet formulation were measured and found to be: AH = -23.6 kJ mol¹ and AS = 59.9 J K¹ mol¹¹. Which ONE of the following is the value of AG for the release of the drug at 37.0 °C? -42.2 kJ/mol -5.0 kJ/mol -18.6 kJ/mol -25.8 kJ/mol -2.2 kJ/mol

Thermodynamic parameters (here the activation energy, enthalpy and entropy) for the release of a certain drug from a tablet formulation were measured and found to be: AH = -23.6 kJ mol¹ and AS = 59.9 J K¹ mol¹¹. Which ONE of the following is the value of AG for the release of the drug at 37.0 °C? -42.2 kJ/mol -5.0 kJ/mol -18.6 kJ/mol -25.8 kJ/mol -2.2 kJ/mol

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

Phosgene (COCl2) is used in the manufacture of foam rubber and bulletproof glass. It is formed from carbon monoxide and chlorine in the following reaction:Cl2(g)+CO(g) ----> COCl2(g) The value of Kc for the reaction is 17.1 at 540.4 °C. What is the value of Kp at 540.4 °C?
1.Calculate the value of the Gibbs Free Energy at 298 K for the conversion of A to B if the enthalpy of the reaction is -6.13 kJ·mol-1 and the change in entropy is -24.4 J·K-1·mol-1: _______ KJ.mol^-1
Give typed explanation not written
-) Phosphorous and chlorine gases combine to produce phosphorous trichloride: P2(g) + 3C12(g) → 2PC13(g) AG° at 298 K for this reaction is -642.9 kJ/mol. At 298 K for a reaction mixture that consists of 2.0 atm P2, 2.0 atm Cl and 1.0 atm PC13 what is the value of AG?
At - 19.4 °C the pressure equilibrium constant K = 6.3 x 10' for a certain reaction. Here are some facts about the reaction: • The net change in moles of gases is -1. If the reaction is run at constant pressure, the volume increases by 12.%. If the reaction is run at constant pressure, 138. kJ/mol of heat are released. ○ Yes. Using these facts, can you calculate K, at -26. °C? ○ No. If you said yes, then enter your answer at right. Round it to 2 significant digits. at If you said no, can you at least decide whether K -26. °C will be bigger or smaller than K,, at -19.4 °C? 0 Yes, and K,, will be bigger. Yes, and K, will be smaller. ○ No. X
Ag(+aq) + Cl-(aq) AgCl(s) ∆H = +112 kJIf ions are colorless, and AgCl is whiteWill the reaction appear “colorless” or “white” if:a) Some of the AgCl (s) is removed?b) The pressure is decreased?c) The temperature is raised?
What is the equilibrium constant at 298 K for the following reaction? 3C(s) +3H2(g) ® C3H6(g); DH° = 29.4 kj; DS° = -141.6 J/K at 298 K %3D
A student determines the value of the equilibrium constant to be 2.69×10-10 for the following reaction.Fe2O3(s) + 3H2(g)2Fe(s) + 3H2O(g)Based on this value of Keq:G° for this reaction is expected to be (greater, less) fill in the blank than zero.Calculate the free energy change for the reaction of 2.05 moles of Fe2O3(s) at standard conditions at 298K. G°rxn = ____kJ
In which of the following reactions is ASº expected to be negative? O L(s)I(g) O 2NH;(g) → N(g) + 3H3(g) O 2H,0(g) → 2H,(g) + O>(g) O CH;OH(g) → CH;OH(I) O AS° is not expected to be negative for any of these.
Calculate the AH°, AS°, and AG° at 298 K for the following reaction: (Use the values found in Thermodynamic Properties to calculate your answers for questions a and b.) Al2O3(s) + 3 C(graphite) + 3 Cl₂(g) → 2 AICI 3(s) + 3 CO(g) 4.0 -64 a) ΔΗΟ kJ/mol b) AS° ✓ J/K.mol kJ/mol (Determine from the temperature, AH and AS) c) AGO 4.0 76.9 4.0 -89 (d) Is the reaction extensive at standard conditions and 298 K? O Yes O NO (e) Write the expression for K. (Format example: Kp = pHC12 / pH₂. pCl₂ would be entered as K_{p} = pHCI^{2}/pH_{2}. pCl_{2}.) Help chemPad XX (PCO)3 (pCl₂)³ ← Greek (PCO)^3/(pCl_2)^3 Your answer provides a different type of equation than was expected. (f) Calculate the value of K at 298 K 2.51e-16 X (Please answer to 3 significant figures.) (g) Estimate the value of K at 600 K. 1.79e-8 X (Please answer to 3 significant figures.)
What is AGxn (in kJ) at 1932 K for the following reaction? 2POCI3(g) → 2PC13(g) + O₂(g) POCI3(g): AH = -592.7 kJ/mol and Sº = 324.6 J/K mol) PC13(g): AH = -287.0 kJ/mol and So = 311.7 J/K mol) O₂(g): AH = ? kJ/mol and Sº = 205.0 J/K mol)
The equilibrium constant, Kp, for the following reaction is 1.57 at 600 K.CO(g) + Cl2(g) COCl2(g)If ΔH° for this reaction is -108 kJ, what is the value of Kp at 699 K?Kp =