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bobbys mom sets a small pot of water on the stove and lights the burner…

Question

bobbys mom sets a small pot of water on the stove and lights the burner. ten minutes later, bobby notices small bubbles and sees that the water is almost boiling. which of the following could possibly be the temperature of the water in the pot? 120°f 110°c 99°f 205°f

Explanation:

Step1: Recall boiling point of water

The boiling point of water at standard atmospheric pressure is \( 100^\circ \text{C} \) or \( 212^\circ \text{F} \). When water is almost boiling, its temperature should be close to these values.

Step2: Analyze each option

  • \( 120^\circ \text{F} \): Convert to Celsius using \( C=\frac{5}{9}(F - 32) \), so \( C=\frac{5}{9}(120 - 32)=\frac{5}{9}\times88\approx48.9^\circ \text{C} \), too low.
  • \( 110^\circ \text{C} \): This is above the boiling point of water (100°C) at standard pressure, and water would be boiling vigorously, not "almost boiling" with small bubbles.
  • \( 99^\circ \text{F} \): Convert to Celsius: \( C=\frac{5}{9}(99 - 32)=\frac{5}{9}\times67\approx37.2^\circ \text{C} \), too low.
  • \( 205^\circ \text{F} \): Convert to Celsius: \( C=\frac{5}{9}(205 - 32)=\frac{5}{9}\times173\approx96.1^\circ \text{C} \), which is close to \( 100^\circ \text{C} \) (boiling point), so this temperature is reasonable for water that is almost boiling.

Answer:

\( 205^\circ \text{F} \) (the option with \( 205^\circ \text{F} \))