Chemistry

? value of diffusion depends on mass(molecular mass low, rate high) + temp( temp low, rate low) ?solid : particle ar packed or so to prevailher in an orderly manner; wad notwithstanding agitate and rotate abt their fixed position; unfluctuating forces amid the particles; low energy content as playactment is restricted ? fluent: particles be packed closely together and not in an orderly arrangement; can vibrate,rotate and move passim the liquid, they conflict against each otherwise, are held together by strong forces but weaker than the forces in a solid, higher energy content. ? bodge: particles are rattling far apart from each other and are in a random arrangement; can vibrates, rotate and move freely, the rate of collision is greater than the rate of collision in a liquid; weak forces amidst particle, highest energy content as movement is random. Sublimation: iodine, ammonium chloride, NH4CL, alter ice(solid CO2) ?Heating of batchhthalene(mp:80) : during the melting process, the temp remains constant because the rut energy absorbed by the particles is used to overcome the forces amidst particles so that the solid can go into a liquid.

At this temp, both solid and liquid are present water clean is used to ensure batch heted evenly+nap is flammable ? cool down of naphthalene: during the frost process, temp remain constant becoz the heat expiry to the environment is exactly balances by the heat energy liberate as the particles attract one another to form a solid. nap is stirred continuously to avoid supercooling( temp drops at a lower place freezing point , without appearance of solid) ?Daltons : b! all, Thompson: negatron, Rutherford: proton+nucleus, Bohr:electron move in shells, Chadwick: neutrons ?Isotope: same num of proton, but diff num of neutron, diff physical property(density, mp, bp) cobalt-60: irradiation for cancer,plutonium-238: regulate the heartbeat,iodine-131: thyroid disease,uranium-235: nuclear power, phosphorus-32: uptake of phosphate+ transfiguration of phosphorus, carbon-14:...If you want to get a full essay, order it on our website: OrderCustomPaper.com

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