A 200 litre stirred fermenter contains a batch culture of Bacillus subtilis bacteria at 28°C. Air at 20°C is pumped into the vessel at a rate of 1 vvm; (vvm stands for volume of gas per volume of liquid per minute). The average pressure in the fermenter is 1 atm. The volumetric flow rate of off-gas from the fermenter is measured as 189 l min-1. The exit gas stream is analysed for oxygen and is found to contain 20.1% 0 2. The dissolved-oxygen concentration in the broth is measured using an oxygen electrode as 52% air saturation. The solubility of oxygen in the fermentation broth at 28°C and 1 atm air pressure is 7.8 x 10-3 kg m-3. the oxygen analyser used to measure the exit gas composition has been incorrectly calibrated. if the oxygen content has been overestimate by 10% what error is associated with the results for Kla
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Divya: Hello Aunty. This is Divya. Is Rahul around?
Aruna: I'm afraid. Rahul has gone over to his friend's house.
Divya: OK! When is he expected to be back?
Aruna: He might be late. He has a match till 3:30 p.m. today. Ok! Could you please inform him when
he comes back, that I've booked a ticket from his railway account user ID. Please ask him not to
cancel it as it's for one of my friends who will be travelling shortly to Orissa.
Aruna: Oh, Ok! Don't worry I'll let him know as soon as he comes back so that he's not worried or
suspicious!
Divya: Thank you so much Aunty! Also tell him I'll drop by at around 7.30 p.m. today.
Aruna: Sure Divya! He'll be glad to hear that!
You are Aruna, Rahul's mother. You have to leave urgently for a meeting. Leave a message for Rahul
informing him about Divya's phone call.
Answer:
Hello myself jasmita nice to meet you