if 8.00 moles of a monoatomic ideal gas at a temperature of 245K are expanded isothermally from a volume of 1.12L to a volume of 4.33L, calculate (a) the work done (b) the heat flow into or out of the gas. (c) if the number of moles is doubled, by what factors do your answers to parts (a) and (b) change Explain.