Assignment:
Q1) You have two pieces of Al metal - one is a thin piece of Al foil, and the other is a thick block. Both have the same length and width. Which will absorb more heat when set on a hotplate for the same period of time to raise the temperature 5 degrees?
a) Block
b) Foil
c) The heat capacity is the same, so they will absorb the same amount of heat.
d) Heat would actually be released from both the block and foil.
Q2) Which is true?
a) Delta Hrx is usually measured and reported in KJ/mol.
b) An endothermic reaction gives a +Hrx.
c) The enthalpy of formation of liquid nitrogen is 0 KJ.
d) A phase change from solid to liquid results in a -q value.