The partial pressure of argon in the atmosphere is 7.10torr .
Calculate the partial pressure in mmHg and atm . Round each of your
answers to 3 significant digits.
(a)
Calculate BE/A (in MeV) for 12C. Stable and
relatively tightly bound, this nuclide is most of natural carbon.
(Assume 1 u = 931.5 MeV/c2. Give your answer to
at least 2 decimal places.)
answer in MeV
(b)
Calculate BE/A (in MeV) for 11C.
answer in MeV
Is the difference in BE/A between 12C and
11C significant? One is stable and common, and the other
is unstable and rare. (Assume the difference to be significant if
the percent difference between...
Following the soxhlet procedure, calculate the % fat content on
dry and wet basis
of a cheese sample considering the following:
Weight of dried sample = 2.0251 g
Weight of sample + thimble + glass wool = 5.4047 g
Weight of defatted sample + thimble + glass wool = 4.4107 g
% moisture = 35%
1 Larmor radius and gyration frequency (10 P) Calculate the
Larmor radius and the gyration frequency (4 P) for:
1. An electron in the Earth’s ionosphere at 300 km altitude,
where the magnetic flux density is B ≈ 0.5 · 10−4 T, considering
that the electron moves at the thermal velocity (p kT /m) with T =
1000 K. (1 P)
2. An oxygen ion O+ in the Earth’s ionosphere for the same
conditions as above. Is there a difference...
Calculate the number of pounds of CO 2 released into the
atmosphere when a 21.0 gallon tank of gasoline is burned in an
automobile engine. Assume that gasoline is primarily octane, C 8 H
18 , and that the density of gasoline is 0.692 g ⋅ mL − 1 . This
assumption ignores additives. Also, assume complete combustion.
Useful conversion factors: 1 gallon = 3.785 L 1 kg = 2.204 lb