Suppose 12.6 g of oxygen gas (O2, 32.0 g/mol) is heated at constant atmospheric pressure from 17.0°C to 110°C.
(a) How many moles of O2 molecules are present? ____moles How many moles of oxygen atoms are present? ____moles
(b) How much energy is transferred to the oxygen as heat?
____J
(c) What fraction of the heat is used to raise the internal energy of the oxygen?
____