Question

Ndrea was mixing a chemical solution that has a boiling point that is 20°c higher than its freezing point. currently, the temperature of the solution is 13° below. it’s boiling point the number 13 describes the temperature at which the solution boils relative to its current temperature. Which number describes the freezing point of the solution relative to its current temperature?

A) -33°C
B) -20°C
C) -6.5°C
D) 33°C

Answer 1

The freezing point relative to the current temperature would technically be -7°C based on the information given, but there might be a mistake in the question or the options provided, as -7°C is not listed. The closest option available is -6.5°C.

Step-by-step explanation:

The student is asking about the relative temperatures concerning the freezing and boiling points of a chemical solution. Since the boiling point is 20°C higher than the freezing point, and the current temperature is 13°C below the boiling point, we can establish two coordinates: the boiling point (BP) and the freezing point (FP). We are given that BP = FP + 20°C. Now, if the solution's current temperature is 13°C below its boiling point, then the current temperature is BP - 13°C. If we want to find the freezing point relative to the current temperature, we would subtract the FP from the current temperature: (BP - 13°C) - FP = BP - FP - 13°C = 20°C - 13°C = 7°C. However, since we are looking at how much colder it is than the current temperature, we take the negative of that: -7°C. However, this number isn't in the options provided, indicating a potential mistake in the question or the options given. The closest answer among the provided options would be -6.5°C which might represent a rounding difference.