1.a) In the electrolysis of water, how long will it take to produce 24 L of...
Fantastic news! We've Found the answer you've been seeking!
Question:
Transcribed Image Text:
1.a) In the electrolysis of water, how long will it take to produce 24 L of H₂ gas at 23 atm and 26 °C using an electrolytic cell through which a current of 7.9 A flows? [15 points] 1.b) For the given reaction 2H₂O → H₂O₂ + H₂, Vth = 1.99 V and Vrev = 1.76 V. Calculate the enthalpy of formation and Gibbs function of formation for hydrogen peroxide at standard conditions. [15 points] You can use the below table. Thermochemical Properties of Selected Substances at 298K and 1 atm Substance Carbon Hydrogen Nitrogen Oxygen Carbon monoxide Carbon dioxide Water Water Hydrogen peroxide Ammonia Oxygen Hydrogen Formula C(s) H₂(g) N₂(g) 0₂(g) CO(g) CO₂(g) H₂O(g) H₂O(1) H₂O₂(g) NH,(g) 0(g) H(g) Molar Mass, M (kg/kmol) 12.01 2.016 28.01 32.00 28.01 44.01 18.02 18.02 34.02 17.03 16.00 1.008 Enthalpy of Formation, T (kJ/kmol) 0 -110,530 -393,520 -241,820 -285,830 -136,310 -46,190 249,170 218,000 Gibbs Function of Formation, gi (kJ/kmol) 0 0 0 0 -137,150 -394,380 -228,590 -237,180 -105,600 -16,590 231,770 203,290 Absolute Entropy, 3° (kJ/kmol K) 5.74 130.57 191.50 205.03 197.54 213.69 188.72 69.95 232.63 192.33 160.95 114.61 Heating Values Higher, HHV (kJ/kg) 32,770 141,780 Lower, LHV 32,770 119,950 1.a) In the electrolysis of water, how long will it take to produce 24 L of H₂ gas at 23 atm and 26 °C using an electrolytic cell through which a current of 7.9 A flows? [15 points] 1.b) For the given reaction 2H₂O → H₂O₂ + H₂, Vth = 1.99 V and Vrev = 1.76 V. Calculate the enthalpy of formation and Gibbs function of formation for hydrogen peroxide at standard conditions. [15 points] You can use the below table. Thermochemical Properties of Selected Substances at 298K and 1 atm Substance Carbon Hydrogen Nitrogen Oxygen Carbon monoxide Carbon dioxide Water Water Hydrogen peroxide Ammonia Oxygen Hydrogen Formula C(s) H₂(g) N₂(g) 0₂(g) CO(g) CO₂(g) H₂O(g) H₂O(1) H₂O₂(g) NH,(g) 0(g) H(g) Molar Mass, M (kg/kmol) 12.01 2.016 28.01 32.00 28.01 44.01 18.02 18.02 34.02 17.03 16.00 1.008 Enthalpy of Formation, T (kJ/kmol) 0 -110,530 -393,520 -241,820 -285,830 -136,310 -46,190 249,170 218,000 Gibbs Function of Formation, gi (kJ/kmol) 0 0 0 0 -137,150 -394,380 -228,590 -237,180 -105,600 -16,590 231,770 203,290 Absolute Entropy, 3° (kJ/kmol K) 5.74 130.57 191.50 205.03 197.54 213.69 188.72 69.95 232.63 192.33 160.95 114.61 Heating Values Higher, HHV (kJ/kg) 32,770 141,780 Lower, LHV 32,770 119,950
Expert Answer:
Answer rating: 100% (QA)
Answes 1 a More information Paused is required for this voltage o... View the full answer
Related Book For
Posted Date:
Students also viewed these mechanical engineering questions
-
The sensory change of tomato firmness over time at 150C under isothermal conditions is in the table below. By finding the appropriate kinetic expression for tomato firmness, calculate the time...
-
Tim plays a computer game. Each game is a win or a loss. He wins three fifths of his first 40 games. He then wins his next 12 games. For all 52 games, Required: work out the ratio wins: losses Give...
-
Find a formula for the nth term of the sequence. 1. 64, 32, 16, . . . 2. 81, 27, 9, . . . 3. 9, 18, 36, . . . 4. 5, -10, 20, . . . 5. 6, - 9, 27 / 2, . . .
-
Determine this shape factor F1??2 for the geometrical configuration shownGIVENThe geometrical configuration shownabove 2L 3
-
Figure \(\mathrm{P} 27. 17\) shows a long, straight current-carrying wire running perpendicular to the plane of the page. The current produces a magnetic field that points to the right at position P....
-
Elbert Company accumulates the following summary data for the year ending December 31, 2014, for its Water Division, which it operates as a profit center: sales $2,000,000 budget, $2,080,000 actual;...
-
12345678 7 9 10 Define Corporate Planning. What is Vision? What is Mission? Give an Example. What is Strategy? Define Environmental Scanning. List out elements of Internal Environment. List out...
-
How can an Enterprise Resource Planning (ERP) system help an US company transition from U.S. GAAP to IFRS?
-
This program is designed to provide a matcher that compares strings ending in sequences of digits in a way that makes sense to a human. Explain step by step what was developed in the...
-
What are the characteristics of radio as a mobile medium in trinidad and tobago?
-
Proxy Pattern The current code includes two classes that represent the APIs for Google and AWS services, but only a subset of the methods implemented are required for application. Because we want to...
-
Vista uses the FIFO method to compute equivalent units. If unit materials cost is $ 8 and unit conversion cost is $ 1 2 , determine the costs to be assigned to the units completed and transferred out...
-
(e) Silicon has a Young's modulus, E, of 179 GPa and a density of 2330 kg.m. Q 1(f) (i) What is the mass of a cantilever of length (/) 100 m, width (w) 10 m and thickness (t) 1 m? (ii) Using the...
-
Find the value of y when x = 6. given that the function y =-2cot: = -2cot -(: + 3 6.
-
Suppose that a company has 10.000 outstanding shares in the beginning of the year. On April 1st, the company increases its shares by 6.000. On July 1st, the company increases its shares again, but...
-
You are asked to help set up a historical display in the park by stacking some cannonballs next to a Revolutionary War cannon. You are told to stack them by starting with a triangle in which each...
-
An electron is trapped in an octahedral hole in a closest packed array of aluminum atoms (assume they behave as uniform hard spheres). In this situation the energy of the electron is quantized and...
-
Consider separate 1.00-L samples of Ar(g), both containing the same number of moles, one at 27 o C and the other at 77 o C. Compare the change in momentum per impact and the number of impacts per...
-
Does the snowflake have rotational symmetry in Figure 1.6? If yes, describe the ways in which the flake can be rotated without changing its appearance. Does it have reflection symmetry? If yes,...
-
A couple in a sport-utility vehicle (SUV) is traveling at 90 km/h on a straight highway. The driver sees an accident in the distance and slows down to 40 km/h in
-
Which of the following statements are hypotheses? (a) Heavier objects fall to Earth faster than lighter ones. (b) The planet Mars is inhabited by invisible beings that are able to elude any type of...
Study smarter with the SolutionInn App