Two Solutions (The System), Each of 25

question 54

Multiple Choice

Two solutions (the system) , each of 25.0 mL volume and at 25.0°C, are mixed in a beaker. A reaction occurs between them, and the temperature rises to 35.0°C. After the products have equilibrated with the surroundings, the temperature is again 25.0°C and the total volume is 50.0 mL. No gases are involved in the reaction. Which one of the following relationships concerning the change from initial to final states (both at 25.0°C) is correct?

• A)Δ E = 0
• B)Δ H = 0
• C)Δ E > 0
• D)q = 0
• E)w = 0

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Adjusting Entry

Journal entries made at the end of an accounting period to update income and expense accounts so that the income statement reflects the revenues earned and expenses incurred during the period.

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