Final answer:
The ideal gas law works moderately well for real gases at high temperatures and low pressures, but less so at high pressures or low temperatures due to the significance of molecular volume and intermolecular attractions.
Step-by-step explanation:
The ideal gas law works moderately well for real molecules under certain conditions. Specifically, it provides a good approximation for the behavior of real gases at high temperatures and low pressures, where the volume of the gas molecules is negligible and the intermolecular attractions are weak. At high pressures or low temperatures, however, real gases exhibit significant deviations from ideal behavior due to the increased significance of molecular volume and attractive forces. In summary, option (b) Moderately well, would be the most accurate answer to the student's question on how well the ideal gas law works in real molecules.