Principles of General Chemistry
3rd Edition
ISBN: 9780073402697
Author: SILBERBERG, Martin S.
Publisher: McGraw-Hill College
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Textbook Question
Chapter 6, Problem 6.21P
Is the specific heat capacity of a substance an intensive or extensive property? Explain.
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In one electrode: Pt, H2(1 atm) | H+(a=1), the interchange current density at 298K is 0.79 mA·cm-2. If the voltage difference of the interface is +5 mV. What will be the correct intensity at pH = 2?. Maximum transfer voltage and beta = 0.5.
In a Pt electrode, H2(1 atm) | H+(a=1), the interchange current density of an electrode is 0.79 mA cm-2. ¿Qué corriente flow across the electrode of área 5 cm2 when the difference in potential of the interface is +5 mV?.
If the current voltage is n = 0.14 V, indicate which of the 2 voltage
formulas of the ley of Tafel must be applied
i
a
a) == exp (1-B).
xp[(1 - ß³):
Fn
Fn
a
b) == exp B
RT
RT
Chapter 6 Solutions
Principles of General Chemistry
Ch. 6 - Prob. 6.1PCh. 6 - An adiabatic process is one that involves no heat...Ch. 6 - Name a common device used to accomplish each...Ch. 6 - Prob. 6.4PCh. 6 - A system receives 425 J of heat from and delivers...Ch. 6 - A system releases 255 cal of heat to the...Ch. 6 - Prob. 6.7PCh. 6 - Prob. 6.8PCh. 6 - The nutritional calorie (Calorie) is equivalent to...Ch. 6 - Classify the following processes as exothermic or...
Ch. 6 - Why can we measure only changes in enthalpy, not...Ch. 6 - Draw an enthalpy diagram for a general exothermic...Ch. 6 - Prob. 6.13PCh. 6 - Prob. 6.14PCh. 6 - Prob. 6.15PCh. 6 - Write a balanced equaĂ¼on and draw an approximate...Ch. 6 - Write a balanced equation and draw an approximate...Ch. 6 - The circles represent a phase change at constant...Ch. 6 - The scenes below represent a physical change...Ch. 6 - What data do you need to determine the specific...Ch. 6 - Is the specific heat capacity of a substance an...Ch. 6 - Find q when 22.0 g of water is heated from 25.0C...Ch. 6 - Prob. 6.23PCh. 6 - A 295-g aluminum engine part at an initial...Ch. 6 - A 27.7-g sample of the radiator coolant ethylene...Ch. 6 - Two iron bolts of equal mass-one at 100.C, the...Ch. 6 - Prob. 6.27PCh. 6 - When 155 mL of water at 26C is mixed with 75 mL of...Ch. 6 - Prob. 6.29PCh. 6 - Prob. 6.30PCh. 6 - Prob. 6.31PCh. 6 - When 25.0 mL of 0.500MH2SO4 is added to 25.0 mL of...Ch. 6 - Would you expect O2(g)20(g) to have a positive or...Ch. 6 - Is H positive or negative when 1 mol of water...Ch. 6 - Prob. 6.35PCh. 6 - Consider the following balanced thermochemical...Ch. 6 - When 1 mol of NO(g) forms from Its elements, 90.29...Ch. 6 - Prob. 6.38PCh. 6 - Liquid hydrogen peroxide, an oxidizing agent in...Ch. 6 - Prob. 6.40PCh. 6 - Most ethylene (C2H4), the starting material for...Ch. 6 - Prob. 6.42PCh. 6 - Prob. 6.43PCh. 6 - Calculate H for Ca(s)+12O2(g)+CO2(g)CaCO3(s) Given...Ch. 6 - Calculate H for 2NOCl(g)N2(g)+O2(g)+Cl2(g) given...Ch. 6 - Write the balanced overall equation (equation 3)...Ch. 6 - Write the balanced overall equation (equation 3)...Ch. 6 - Diamond and graphite are two crystalline forms of...Ch. 6 - Prob. 6.49PCh. 6 - Prob. 6.50PCh. 6 - Use Table 6.3 or Appendix B to write a balanced...Ch. 6 - Prob. 6.52PCh. 6 - Calculate Hrxno for each of the following:...Ch. 6 - Calculate Hrxno for each of the following:...Ch. 6 - Copper(I) oxide can be oxidized to copperr (II)...Ch. 6 - Prob. 6.56PCh. 6 - Nitroglycerine, C3H5(NO3)3(l), a powerful...Ch. 6 - The common lead-acid car battery produces a large...Ch. 6 - Stearic acid (C18H36O2) is a fatty acid, a...Ch. 6 - A ballonist begins a trip in a helium-filled...Ch. 6 - Prob. 6.61PCh. 6 - Prob. 6.62PCh. 6 - Prob. 6.63PCh. 6 - Prob. 6.64PCh. 6 - Four 50.-g sample of different liquids are placed...Ch. 6 - When simple sugars, called monosaccharides, link...Ch. 6 - Reaction of gaseous CIF with F2 yields liquid...Ch. 6 - Prob. 6.68PCh. 6 - When organic matter decomposes under oxygen-free...Ch. 6 - The heat of atomization (Hatomo) is the heat...Ch. 6 - Prob. 6.71PCh. 6 - Prob. 6.72PCh. 6 - An aqueous wastes stream with a maximum...Ch. 6 - Kerosene, a common space-heater fuel, is a mixture...Ch. 6 - Prob. 6.75PCh. 6 - Phosphorus pentachloride is used in the industrial...Ch. 6 - Prob. 6.77PCh. 6 - Silicon tetrachloride is produced annually on the...Ch. 6 - Prob. 6.79PCh. 6 - You want to determine Ho for the reaction...Ch. 6 - Prob. 6.81PCh. 6 - Prob. 6.82PCh. 6 - Liquid methanol (CH3OH) can be used as an...Ch. 6 - How much heat is released when 25.0 g of methane...
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- If the current voltage is n = 0.14 V. Indicate which of the 2 formulas must be applied a) = a T = i exp[(1 - p) F Fn Fn b) i==exp B RTarrow_forwardTopic: Photochemistry and Photophysics of Supramoleculesarrow_forwardTwo cations that exchange an electron in an interface, the exchange density is worth 1.39 mA/cm2 and the current density is worth 15 mA/cm2 at 25°C. If the overvoltage is 0.14 V, calculate the reaction rate and symmetry factor. Data: R = 8,314 J mol-1 k-1: F = 96500 Carrow_forward
- With the help of the Tafel line, it is estimated that the interchange density of the VO2+/VO2+ system on the carbon paper has a value of 3 mA cm-2. Calculate a) the current density if the voltage has a value of 1.6 mV and the temperature is 25°C. b) the beta value of the anódico process if the Tafel pendulum is 0.6 V at 25°C. Data: R = 8.314 JK-1mol-1, y F = 96485 C mol-1.arrow_forwardApply the NANSTE law to the MnO4- + 8H+ + 5e- ⇄ Mn2+ + 4H2Oarrow_forwardIn the Nernst Law, how much is RT / F?arrow_forward
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