I assume you are referring to the usual thermodynamics argument on some creationist websites, like this: "According to the second law of thermodynamics, entropy can not decrease in a closed system. Life reduces entropy, thus the development of life is impossible by nature laws and requires a supernatural force".

You can look up the usual rebuttal on evolution sites, but here it is in short. The problem arises only because creationists do not understand what entropy is. Life on earth in fact increases entropy by dissipating energy from the sun. It would only reduce entropy if it happened without any energy transfer.

You can also see the obvious fallacy of the creationist argument when you consider that if it were true, not only abiogenesis, but also every birth or every growing of a plant would require a supernatural miracle.