When 0.7521 g of benzoic acid was burned in a calorimeter containing 1000 g of water, a temperature increase of 3.60 ℃ was observed. What is the heat capacity of the bomb calorimeter, excluding water? The heat of combustion of benzoic acid is -26.42 kJ/g.

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.