Consider a house into which radon is emitted through cracks in the basement. The total volume of the house is 650 m^3 (assume the volume is well mixed throughout). The radon source emits 250 pCi/s. (A picoCurie [pCi] is a unit proportional to the amount of radon gas and indicates the amount of radioactivity of the gas.) Air inflow and outflow can be modeled as a flow of clean air into the house of 722 m^3/h and an equal air flow out. Radon can be considered conservative in this problem.
-What is the retention time of the house?
-What is the steady-state concentration of radon in the house (units of pCi/L)?
Solved
Show answers
More tips
- L Leisure and Entertainment Learn How to Knit with Needles: A Simple Guide for Beginners...
- C Computers and Internet Best Antivirus: How to Choose Protection for Your Computer?...
- L Legal consultation What Documents Are Required for a Russian Passport?...
- S Sport How to Choose Tennis Rackets?...
- H Health and Medicine AKDS Vaccination: Ensure Your Child s Safety...
- H Health and Medicine Naskol ko Opasen Ukus Kleshcha i Kak Ego Raspoznat...
- C Computers and Internet How to Delete Your Account on Odnoklassniki...
- H Health and Medicine What to Do When Your Jaw Locks Up?...
- G Goods and services What Are the Most Popular Services?...
Answers on questions: Chemistry
- H History A polygon has vertices W(-4,28), X(8,23), Y(36,-22), and Z(8,-7) what is the perimeter of WXYZ in units...
- M Mathematics ou have 3 fair 6-sided dice. You repeatedly roll all 3 at once, until all 3 of them show thesame number. What is the probability that you have to tryat leasttwice...
- B Business Daniel’s failure to deliver ice-cream makers and waffle makers on time resulted in a two-week delay in the opening of sheena’s new ice-cream parlor. sheena incurred...
- C Chemistry 3. Determine the enthalpy of formation for propane. 3C(s, gr) + 4H2(g) --- C3H2(g) CzH3(g) AH = -2219.9 kJ C(s, gr) AH = -393.5 kJ H,(g) AH = -285.8 kJ a. -205.7...
Ответ:
The superscript for oxygen is 17.