1. Suppose that you suspend a 10kg mass of iron from a height of 200meters. The outside temperature is 300K
a. What is the kinetic energy of the mass just before it hits the ground?
b. What is the velocity of the iron mass?
c. What is the final temperature of the mass if all of its kinetic energy at impact is transformed into internal energy? (C sub p) =25.1mol-1K-1)
2. The standard molar heats of combustion of the isomers m-xylene and p-xylene are -4553.9KJmol-1 and -4556.8KJmol-1 respectively. The chemical formula for xylen (both isomers) is C8H10.a. Write a balanced chemical reactions for the combustion of both materials.b. Using the data provided and your two reactions from
(a), and Hess' Law, dtermine the Enthalphy of reaction for the conversion of m-xylene (one headed arrow to p-xylene
3. Show that for a cander Waals gas C sub p - Csubv= ?R( bar on each
C) where 1/?=1-((3vsub r-1)2/4v3sub rTsub r)