Sulfuryl chloride, SO_2Cl-2, is a highly reactive gaseous compound. When heated,

Question

Sulfuryl chloride, SO_2Cl-2, is a highly reactive gaseous compound. When heated, it decomposes as follows: SO_2Cl_2(g) + Cl_2(g). This decomposition is endothermic. A sample of 3.509 grams of SO_2Cl_2 is placed in an evacuated 1.00 liter flask and the temperature is raised to 375K. What would be the pressure in atmospheres in the flask if no dissociation of the SO_2Cl_2(g) occurred? a. 108 atm b. 0.800 atm c. 0.530 atm d. 0.0260 atm e. 9.75 atm When the above system has come to equilibrium at 375K, the total pressure in the bulb is found to be 1.43 atmospheres. Calculate the partial pressures of SO_2, Cl_2, and SO_2Cl_2 respectively at equilibrium at 375K. When the above system has come to equilibrium at 375K, the total pressure in the bulb is found to be 1.43 atmospheres. Calculate the partial pressures of SO_2, Cl_2, and SO_2Cl_2 respectively at equilibrium at 375 K. a. 0.895 atm, 0.895 atm, 0.360 atm b. 8.32 atm, 3.34 atm, 0.235 atm c. 0.630 atm, 0.630 atm, 0.170 atm d. 0.800 atm, 0.80 atm, 0.80 atm

Explanation / Answer

15. Answer:- B

Applying ideal gas equation for sulphuryl chloride assuming no dissociation

PV=nRT

P=nRT/V

Moles=n=given mass/molar mass=3.509/135

R=0.082 L-atm/mol-k , T=375K, V=1L

P=(3.5099×0.082×375)/(135×1)=0.8 atm

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