Question

At what temperature does pure water freeze on the Fahrenheit scale?

• A. \(47^\circ F\)
• B. \(32^\circ F\)
• C. \(0^\circ F\)
• D. \(19^\circ F\)

Hint:

Use the formula F = (9/5)C + 32 with the Celsius freezing point of water, which is 0 degrees C.

Answer 1

The Correct Option is B

Step 1: Recall the two common temperature scales, Celsius and Fahrenheit, and how the freezing point of water is defined on each.

Step 2: On the Celsius scale, pure water freezes at \(0^\circ C\) and boils at \(100^\circ C\) under normal atmospheric pressure.

Step 3: The conversion formula is \(F = \frac{9}{5}C + 32\). Putting \(C = 0\) gives \(F = 32\).

So pure water freezes at \(32^\circ F\) on the Fahrenheit scale. The correct answer is option B.