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TECHNOLOGICAL INSTITUTE OF THE PHILIPPINES CHEP 424 CHEMICAL REACTION ENGINEERING STUDENT STUDENT NAME: _____________________________ SECTION : CH42FB1 INSTRUCTOR : ENGR. LORRAINE A. CARRILLO DATE: July 15, 2010 Solve the following problems . Show detailed solutions. 1. For 1. For a zero-order zero-order reaction, with stoichiometry A→rR taking place in a constant-pressure constant-pressure set-up, V= 1.5 at t=1 and V=1 at t=0. For the same reaction, same feed composition and in a constant-volume constant-volume bomb Π = 1 when t=0, t=0, find Π when t=1. 2. The first-order first-order reversible liquid reaction D↔S CDe = 1 M and CSe=0.5M takes place in a batch reactor. After 18 minutes, conversion of D is 33.33% while equilibrium conversion is 66.7%. Find the rate equation for this reaction. 3. Given 3. Given the zero-order homogeneous gas-phase reaction A →2.7R, in a constant volume bomb starting with 80% A and 20% inert, we have Time 0 1 Total Pressure, atm 1 1.5 If we introduce A at a total pressure of 10 atm, no inerts, inerts, what will be the total pressure at t=1? If we introduce A at a partial pressure of 1 atm and inerts at 9 atm, what will be the total pressure at t=1? B takes place in the gas phase in a constant temperature reactor. Reactant A and diluent gas are 4. The irreversible reaction 2A fed in equimolar ratio, and the conversion of A is 85 percent. If the molar feed rate of A is doubled, what is the conversion of A assuming the feed rate of diluent is unchanged? 5. A batch reactor is used to convert a liquid reactant A. the reactant follows second order kinetics. The time in hours required to convert 60% of A if the initial concentration of A is 0.8 gmol/L and k = 4 L/gmol.h)

TECHNOLOGICAL INSTITUTE OF THE PHILIPPINES CHEP 424 CHEMICAL REACTION ENGINEERING STUDENT STUDENT NAME: _____________________________ SECTION : CH42FB1 INSTRUCTOR : ENGR. LORRAINE A. CARRILLO DATE: July 15, 2010 Solve the following problems . Show detailed solutions. 1. For 1. For a zero-order zero-order reaction, with stoichiometry A→rR taking place in a constant-pressure constant-pressure set-up, V= 1.5 at t=1 and V=1 at t=0. For the same reaction, same feed composition and in a constant-volume constant-volume bomb Π = 1 when t=0, t=0, find Π when t=1. reversible liquid reaction D↔S CDe = 1 M and CSe=0.5M takes place in a batch reactor. After 18 minutes, 2. The first-order reversible conversion of D is 33.33% while equilibrium conversion is 66.7%. Find the rate equation for this reaction. 3. Given 3. Given the zero-order homogeneous gas-phase reaction A →2.7R, in a constant volume bomb starting with 80% A and 20% inert, we have Time 0 1 Total Pressure, atm 1 1.5 If we introduce A at a total pressure of 10 atm, no inerts, inerts, what will be the total pressure at t=1? If we introduce A at a partial pressure of 1 atm and inerts at 9 atm, what will be the total pressure at t=1? 4. The irreversible reaction 2A B takes place in the gas phase in a constant temperature reactor. Reactant A and diluent gas are fed in equimolar ratio, and the conversion of A is 85 percent. If the molar feed rate of A is doubled, what is the conversion of A assuming the feed rate of diluent is unchanged? 5. A batch reactor is used to convert a liquid reactant A. the reactant follows second order kinetics. The time in hours required to convert 60% of A if the initial concentration of A is 0.8 gmol/L and k = 4 L/gmol.h)

TECHNOLOGICAL INSTITUTE OF THE PHILIPPINES CHEP 424 CHEMICAL REACTION ENGINEERING STUDENT STUDENT NAME: _____________________________ SECTION : CH42FB1 INSTRUCTOR : ENGR. LORRAINE A. CARRILLO DATE: July 15, 2010 Solve the following problems . Show detailed solutions. 1. For 1. For a zero-order zero-order reaction, with stoichiometry A→rR taking place in a constant-pressure constant-pressure set-up, V= 1.5 at t=1 and V=1 at t=0. For the same reaction, same feed composition and in a constant-volume constant-volume bomb Π = 1 when t=0, t=0, find Π when t=1. 2. The first-order reversible reversible liquid reaction D↔S CDe = 1 M and CSe=0.5M takes place in a batch reactor. After 18 minutes, conversion of D is 33.33% while equilibrium conversion is 66.7%. Find the rate equation for this reaction. 3. Given 3. Given the zero-order homogeneous gas-phase reaction A →2.7R, in a constant volume bomb starting with 80% A and 20% inert, we have Time 0 1 Total Pressure, atm 1 1.5 If we introduce A at a total pressure of 10 atm, no inerts, inerts, what will be the total pressure at t=1? If we introduce A at a partial pressure of 1 atm and inerts at 9 atm, what will be the total pressure at t=1? 4. The irreversible reaction 2A B takes place in the gas phase in a constant temperature reactor. Reactant A and diluent gas are fed in equimolar ratio, and the conversion of A is 85 percent. If the molar feed rate of A is doubled, what is the conversion of A assuming the feed rate of diluent is unchanged? 5. A batch reactor is used to convert a liquid reactant A. the reactant follows second order kinetics. The time in hours required to convert 60% of A if the initial concentration of A is 0.8 gmol/L and k = 4 L/gmol.h)

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