Percy prepares vegetable curry (liquid) in a pressure cooker. If the raw potatoes are P, the raw tomatoes are T, the raw onions are O, and the cooked meal is M, then 2P + T + O → 3M may represent the cooking process. Sometime during the process, Manu opens the lid and checks the curry to find that the potatoes are half-cooked (take XP = 0.5). Volume of the cooker is 5L and CPo = CTo = COo = 1.5. What can you say about the composition in the cooker at the instant of time when the lid is opened, if initial temperature was 310K?(a) XT = 0.35(b) CO = 1.125(c) T = 380K(d) CM = 2.5The question was posed to me in an internship interview.My enquiry is from Introduction to Reactor Design in section Homogenous Reactions in Ideal Reactors of Chemical Reaction Engineering

Percy prepares vegetable curry (liquid) in a pressure cooker. If the r

1.	Percy prepares vegetable curry (liquid) in a pressure cooker. If the raw potatoes are P, the raw tomatoes are T, the raw onions are O, and the cooked meal is M, then 2P + T + O → 3M may represent the cooking process. Sometime during the process, Manu opens the lid and checks the curry to find that the potatoes are half-cooked (take XP = 0.5). Volume of the cooker is 5L and CPo = CTo = COo = 1.5. What can you say about the composition in the cooker at the instant of time when the lid is opened, if initial temperature was 310K?(a) XT = 0.35(b) CO = 1.125(c) T = 380K(d) CM = 2.5The question was posed to me in an internship interview.My enquiry is from Introduction to Reactor Design in section Homogenous Reactions in Ideal Reactors of Chemical Reaction Engineering
Answer» RIGHT option is (B) CO = 1.125 Best explanation: If we assume the PRESSURE cooker to be a batch reactor, P, T, O as the reactants and M as the product, we can USE material balance to get XT = CAobXA/(aCBo) CO = CAo(1-0.5XA) CM = CAo(3*XA) It is a liquid reaction so CHANGE in volume can be ignored. Thus we cannot say anything about the temperature based on the given information.