Iron(III) sulfate, Fe2(SO43, decomposes upon heating to make iron(III) oxide and sulfur trioxide by the following reaction: Fe2(SO4l3(s) Fe2O3(s) + 3 SO3s(g) What is the variance of the system? OF= 2 OF=3 OF=1 OF=0

Iron(III) sulfate, Fe2(SO43, decomposes upon heating to make iron(III) oxide and sulfur trioxide by the following reaction: Fe2(SO4l3(s) Fe2O3(s) + 3 SO3s(g) What is the variance of the system? OF= 2 OF=3 OF=1 OF=0

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter2: The First Law Of Thermodynamics

Section: Chapter Questions

Problem 2.84E: Assume that 1.20 g of benzoicacid, C6H5COOH, is burned in a porcelain dish exposed to the air.If 31,...

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The Dieterici equation of state for one mole of gas is p=RTe-aVRTV-b Where a and b are constants determined experimentally. For NH3g, a = 10.91 atm. L2 and b = 0.0401 L. Plot the pressure of the gas as the volume of 1.00 mol of NH3g expands from 22.4 L to 50.0 L at 273 K, and numerically determine the work done by the gas by measuring the area under the curve.
Benzoic acid, C6H5COOH, is a common standard used in bomb calorimeters, which maintain a constant volume. If 1.20 g of benzoic acid gives off 31, 723 J of energy when burned in the presence of excess oxygen and in a water bath having a temperature of 24.6 C, calculate q, w, H, and U for the reaction.
Assume that 1.20 g of benzoicacid, C6H5COOH, is burned in a porcelain dish exposed to the air.If 31, 723 J of energy is givenoff andthe surrounding temperature is 24.6C, calculate q, w, H,and U. Compare your answers to those from the previousproblem.
Calculate the value of ?p for the equation C(s)+CO2(g)↽−−⇀2CO(g)?p=? given that at a certain temperature C(s)+2H2O(g) ⇀CO2(g)+2H2(g) ?p1=3.47 H2(g)+CO2(g) ↽−−⇀H2O(g)+CO(g)?p2=0.645
The thermagram in Figure below shows the change in mass of a sample of Copper sulfate pentahydrate, CuSO++5H2O (249.5 g/mole) as a function of temperature. The original sample weighing 25.0 mg was heated from room temperature to 1000°C at a rate of 5º C per minute. The following changes in mass and corresponding temperature ranges were observed : Loss of 1.80 mg from 100 – 250° C. Loss of 7.212 mg from 350 – 550° C., Loss of 8.015 mg from 600 – 800° C. Determine the identities of the volatilization products and the solid residue at each step of the thermal decomposition. Given that: H=1 g/mol , S =32 g/mol , 0=16 g/mol. 20.00 - 15.00 10.00 500- 0.00 400 s00 600 700 Temperature C) 100 200 300 00 s00 1000 Thermogram for CUSO4.5H20
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