Plutonium-239 decays by the reaction Its rate constant is 5.5 × 10–11/min. In a...

Plutonium-239 decays by the reaction

Its rate constant is 5.5 × 10^–11/min. In a one-gram sample of Pu-239,

(a) how many grams decompose in 45 minutes?

(b) how much energy in kilojoules is given off in 45 minutes?

(c) what radiation dosage in rems (page 584) is received by a 75-kg man exposed to a gram of Pu-239 for 45 minutes?