KINETICS AND EQUILIBRIUM -Calculating the reaction rate of one reactant from tha
ID: 956247 • Letter: K
Question
KINETICS AND EQUILIBRIUM -Calculating the reaction rate of one reactant from that of- from hydrogen sulfide gas recovered from natural gas Most of the sulfur used in the United States is chemically wells. In the first step of this synthesis, called the Claus process, hydrogen sulfide gas is produce gaseous sulfur dioxide and water. en sulfide gas is reacted with dioxygen gas to Suppose a chemical engineer studying a new catalyst for the Claus reaction finds that 270. lters per second of dioxygen are consumed when the reaction is run at 205. °C and 0.66 atm. Calculate the rate at which sulfur dioxide is being produced. Give your answer in kilograms per second. Round your answer to 2 significant digits. 0 MacBook ProExplanation / Answer
First, write a balanced equation:
2 H2S + 3 O2 2 SO2 + 2 H2O
2 mol H2S react with 3 mol O2 to produce 2 mol SO2
Volume of O2 consuming at STP,
P1V1/T1 = P2V2/T2
0.66 * 270 / 478 = 1 * V2 / 273
V2 = 0.66 * 270 * 273 / 478
V2 = 101.77 litres O2
1 mol O2 at STP = 22.4 litres
You are consuming 101.77 / 22.4 = 4.543 mol O2
From your balanced equation, 3 mol O2 produce 2 mol SO2
Therefore 4.543 mol O2 will produce 4.543/3 *2 = 3.029 mol SO2
Molar mass SO2 = 32.066 + 2*15.99 = 64.046g
3.029mol = 64.046*3.029 = 193.97g
Production rate of SO2 is 193.97 g/second Or 0.19397 kg/s
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