R = 2.18x10-18 J; h = 6.626x10-34 J•sec or 6.626x10-34 kg•m2 sec-1;
c = 3.00 x 10 8 m•sec-1; 1eV= 1.602x10-19 J
a.) What is the energy of a photon with a wavelength of 335 nm?
b.) If a metal that has a work function of 2.80 eV, what wavelength of light is required to generate electrons with a kinetic energy of 1.02 eV?
c.) If a reaction is exothermic, does it mean that ΔE for the reaction is negative? Explain.