a) Tritium (H-3) has a radiological half-life of 12.3 years. What is its specific activity in units of Bq/g and Ci/g?
b) A 0.2 gram sample of Kr-85 gas, which decays into stable Rb-85, is accidentally broken and escapes into a sealed warehouse measuring 40 x 30 x 20 m. What is the specific activity of the air inside in Bq/cm^3? (This is the airborne concentration.)© BrainMass Inc. brainmass.com March 4, 2021, 6:10 pm ad1c9bdddf
a) Specific Activity (Bq/g) = kN = (0.693/T1/2) × (6.023 × 1023)/A
A = Atomic Weight = 3 , T1/2 = 12.32
Therefore, Specific Activity (Bq/g) = 1.1293 x 1022
Specific Activity (Ci/g) = (Specific Activity, ...
The expert examines what are the specific activity of the air inside.