Don't try this at home
Consider a system which contains water and sulfuric acid. The initial temperature of this system is 15°C and it is subjected to a temperature variation of 85°C. What is the classification of the system's medium after the heating process?
Details and Assumptions :
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Consider that the pressure was kept constant (1 atm) during the process.
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The sulfuric acid's boiling temperature is approximately 337°C and this acid is liquid at 15°C.
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Do not consider any intermolecular interaction between sulfuric acid molecules and water molecules.
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There was no energy loss. Also, consider that the system is located at an open beaker.
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1 solution
After the heating process, the system's temperature will be 100°C, because (15 + 85)°C = 100°C. As the pressure is 1 atm, water will boil and get away from the system. So, after this process, there will only be sulfuric acid in the system. This remaining sulfuric acid didn't boil because the temperature was not enough to boil it. As there is no water, the sulfuric acid does not suffer ionization (process which forms ions hydrogen). Hence, there are no ions hydrogen neither ions hydroxyl in the system, so the system's medium is neutral.