Question 4. (10 pts) In a cryogenic experiment, oxygen gas is confined to a 2-dimensional surface at a temperature of 60 K. The oxygen molecule can rotate in the plane of the 2-dimensional surface but not in any other orientation. If the oxygen gas desorbs into the gas phase from the surface at the standard boiling point of oxygen, which is 90 K, how much energy is required to heat 1 micromole (10-6 mol) to the desorption temperature

18. use the activity series to predict whether the following synthesis reaction will occur. write the chemical equations for the reaction if it's predicted to occur. (s) + o2(g) -> *note: it is possible.*

Under what conditions will a gas be most likely to exhibit the ideal gas properties predicted by the ideal gas law? 1)high pressures and high temperature, because particles are forced closer together with higher kinetic energy, so intermolecular forces of attraction are weaker 2)high pressure and low temperature, because particles are forced closer together and moving slower, so the volume of the particles is less significant 3) low pressure and high temperature, because particles are spread farther apart and moving faster, so the intermolecular forces of attraction are weaker 4)low pressure and low temperature, because particles are spread farther apart with lower kinetic energy, so the volume of the particles is less significant

The temperature of a lead fishing weight rises from 26 °c to 38 °c as it absorbs 11.3 j of heat. what is the mass of the fishing weight in grams?