Two aqueous solutions are both at room temperature and are then mixed in a coffee cup calorimeter. The reaction causes the temperature of the resulting solution to fall below room temperature. Which of the following statements is true?
A) The products have a lower potential energy than the reactants.
B) This type of experiment will provide data to calculate Erxn.
C) The reaction is exothermic.
D) Energy is leaving the system during reaction.
E) None of the above statements are true.
Question 2
What is the volume of a gold nugget that weighs 2.20 kg? The density of gold is 19g/cm3.
A) 8.60 103 cm3
B) 116 cm3
C) 11.6 cm3
D) 8.60 cm3
E) 0.116 cm3
Body temperature and environmental temperature in homeotherms versus heterotherms.
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Wood coffee table