m In PET positron emission tomography) scanning a positron (mass of an electron but opposite charge), from an injected infused emitter such as 18F (in a compound such as fluoroglucose), collides with an electron. The positron- electron collision results in annihilation of their masses with complete conversion to two photons of gamma radiation. What is the wavelength of the radiation released in this process? a. 4.8 x 10-12 O 6.1.2 x 10-12 m OC. 9.6 x 10-12 m d. 2.4 x 10-12 m -particle (helium nucleus) decay of 18 Bi gives: a. 1ST b. 184T1 O c. 184B1 O d. 18 Bi the two reactions below have the equilibrium constants shown CO2(g) = CO(g) + 4402()K=5 H2O(g) = H2C) + 4:02(g) K = 0.2 What is the equilibrium constant for the reactior CO2(g) + H2(g) = CO(g) + H2O(9) K=? a. 25 O b. 10 O c. 5.2 O d. 1