2. Find D E for an exothermic reaction in which 12 kJ of heat flows and where 3400 J of work is done on the system.
-8.6 kJ 8.6 kJ 15.4 kJ -15.4 kJ none of the above
3. The pathway is dependent of:
heat work change in energy A & B B & D
4. Which statement is FALSE?
extensive properties depend directly on the amount of substance temperature is an extensive property intensive properties do not depend on the amount of substance mass is an extensive property all statements are true
5. Which statement concerning Hess's Law is FALSE?
the change in enthalpy is the same regardless of the number of steps DH is also reversed">if reaction is reversed, the sign of DH is also reversed DH is directly proportional to the quantities of reactants and products in a reaction">the magnitude of DH is directly proportional to the quantities of reactants and products in a reaction DH indicates the direction of heat flow">the sign of DH indicates the direction of heat flow all statements are true
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