Two Aqueous Solutions Are Both at Room Temperature and Are

question 45

Multiple Choice

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 ΔE_rxn.
• C) The reaction is exothermic.
• D) Energy is leaving the system during reaction.
• E) None of the above statements are true.

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