The Heat of Solution of Ammonium Nitrate Is 26 $\circ$ C, What Is the Minimum Temperature Reached by the Solution

question 53

Multiple Choice

The heat of solution of ammonium nitrate is 26.2 kJ/mol. If a 5.368 g sample of NH₄NO₃ is added to 40.0 mL of water in a calorimeter at 23.5 ^$\circ$ C, what is the minimum temperature reached by the solution (The specific heat of water = 4.18 J/g· ^$\circ$ C; the heat capacity of the calorimeter = 650. J/ ^$\circ$ C.)

• A) -7.7^\(\circ\)C
• B) 14.3^\(\circ\)C
• C) 20.8^\(\circ\)C
• D) 21.4^\(\circ\)C
• E) 25.6^\(\circ\)C

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