subject
Engineering, 16.03.2020 22:13 HeroicEddie

(25 points).The heat is turned on in a building in a cold morning, but the heater does not burnthe natural gas properly and emits carbon monoxide (CO) at 55mg/hr. CO is detrimental tohumans at concentrations of 5 ppm or higher. If the ventilation of the building is refreshing the air(i. e., it brings fresh air from outside that contains no CO at a flow rate of 100 m3/hr, the buildinghas a volume of 500m3, and CO is slowly oxidized in the air to carbon dioxide (CO2) with a rateconstant of kd=0.0001mg. L-1.hr-1, will the COconcentration ever pass the 5ppm limit or not?Atomic weights: C-12, O-16, air-29; 1 mole of gas occupies 22.4L at the conditions of theproblem (1atm, 250C).

ansver
Answers: 1

Another question on Engineering

question
Engineering, 03.07.2019 14:10
Line joining liquid phase with liquid and solid phase mixture is known as: a) liquidus b) solidus c) tie line d) none of the mentioned
Answers: 2
question
Engineering, 04.07.2019 19:10
What is the main objective of using reheat rankine cycle?
Answers: 3
question
Engineering, 06.07.2019 02:30
Precipitation hardening can be achieved in many light alloys by a three-step heat treatment. what is carried out and what is the purpose at each step? why is such a treatment necessary based on the nucleation and growth theory of phase transformation. compare this treatment with tempering martensite for carbon steels (similarities and differences).
Answers: 1
question
Engineering, 06.07.2019 03:20
Write a technical essay (maximum two pages) about stress concentration. and paste from the textbook. instead, read updated material about this phenomenon and provide a technical evaluation of the different techniques to avoid/reduce such phenomenon. consider in your analysis cutting-edge computational techniques such as fea to study and analyze stress concentrations.
Answers: 2
You know the right answer?
(25 points).The heat is turned on in a building in a cold morning, but the heater does not burnthe n...
Questions
question
Mathematics, 11.10.2019 13:50
question
Mathematics, 11.10.2019 13:50
question
English, 11.10.2019 13:50
Questions on the website: 13722367