What can you say about δu, q and w for the following processess? (a) a chemical reaction occurs irreversibly in a well-insulated, rigid bomb. there is an increase in the number of mols such that pressure increases considerably. ( take the bomb as your system) (b) one kmol of an ideal gas (cpm=30kj/kmol∙k),

Which theory was contradicted by experiments with the photoelectric effect? light spreads out after it passes through a small opening. as soon as light strikes metal, electrons will be ejected. visible light, regardless of color, will cause the ejection of electrons when striking metal. the kinetic energy of ejected electrons depends on the frequency of light that strikes the metal.