Chapter 10, Problem 8P

A particle of ionizing radiation creates 4,600 ion pairs in the gas inside a Geiger tube as it passes through. What minimum energy (in J) was deposited, if 21.0 eV is required to create each ion pair?   If all of this energy is converted to thermal energy in the gas, what is its temperature increase (in K), assuming 55.0 cm3 of ideal gas at 0.300 atm pressure? (The small answer is consistent with the fact that the energy is large on a quantum mechanical scale but small on a macroscopic scale. Assume the initial temperature of the gas is 293 K.)

A spherical system is made up of 95 wt% 235U and 5 wt% 238U. a. Calculate the fission mean free path b. Calculate the absorption mean free path c. Calculate k∞ for this assembly

(a) If the average molecular mass of compounds in food is50.0 g, how many molecules are there in 1.00 kg of food? (b)How many ion pairs are created in 1.00 kg of food, if it isexposed to 1000 Sv and it takes 32.0 eV to create an ionpair? (c) Find the ratio of ion pairs to molecules. (d) If theseion pairs recombine into a distribution of 2000 newcompounds, how many parts per billion is each?