Assume that the half-life of a particular drug depends on its oxidative transformation following first order kinetics. If the drug has a half-life of 5h, calculate the rate constant for the transformation

Two metal blocks that have slightly different temperatures are placed next to one another. after five minutes, they both have lower but equal temperatures. according to the law of conservation of energy, what  most likelyhappened? energy was created inside the blocks.energy was destroyed inside the blocks.energy was absorbed into the blocks from outside the system.energy was transferred from the warmer block to the cooler block.