Chapter 2: Problem 2
a. Convert \(0^{\circ} \mathrm{F}\) to degrees Celsius. b. Convert \(212^{\circ} \mathrm{C}\) to degrees Fahrenheit.
Short Answer
Expert verified
a. -17.78°C; b. 413.6°F.
Step by step solution
01
Understand the Conversion Formula for Fahrenheit to Celsius
The formula used to convert temperatures from Fahrenheit to Celsius is given by:\[C = \frac{5}{9}(F - 32)\]where \(C\) is the temperature in degrees Celsius and \(F\) is the temperature in degrees Fahrenheit.
02
Substitute 0°F into the Conversion Formula
We need to convert \(0^{\circ} \mathrm{F}\) to Celsius. Substitute \(F = 0\) into the formula for converting Fahrenheit to Celsius:\[C = \frac{5}{9}(0 - 32)\]
03
Calculate the Celsius Temperature
Evaluate the expression:\[C = \frac{5}{9}(-32) = \frac{-160}{9} \approx -17.78^{\circ} \mathrm{C}\]Thus, \(0^{\circ} \mathrm{F}\) is approximately \(-17.78^{\circ} \mathrm{C}\).
04
Understand the Conversion Formula for Celsius to Fahrenheit
The formula used to convert temperatures from Celsius to Fahrenheit is given by:\[F = \frac{9}{5}C + 32\]where \(F\) is the temperature in degrees Fahrenheit and \(C\) is the temperature in degrees Celsius.
05
Substitute 212°C into the Conversion Formula
We are now tasked with converting \(212^{\circ} \mathrm{C}\) to Fahrenheit. Substitute \(C = 212\) into the formula above:\[F = \frac{9}{5} \times 212 + 32\]
06
Calculate the Fahrenheit Temperature
Evaluate the expression:\[F = \frac{9}{5} \times 212 + 32 = 381.6 + 32 = 413.6^{\circ} \mathrm{F}\]Thus, \(212^{\circ} \mathrm{C}\) is equivalent to \(413.6^{\circ} \mathrm{F}\).
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Fahrenheit to Celsius Conversion
Converting temperatures from Fahrenheit to Celsius is a straightforward process using a specific formula. To make this conversion, use the formula:
- \( C = \frac{5}{9}(F - 32) \)
- Subtract 32 from the Fahrenheit temperature.
- Multiply the result by \(\frac{5}{9}\).
Celsius to Fahrenheit Conversion
To convert a temperature from Celsius to Fahrenheit, a different formula is used. This gives us insight into how temperature scales vary around the world. The formula is:
- \( F = \frac{9}{5}C + 32 \)
- Multiply the Celsius temperature by \(\frac{9}{5}\).
- Add 32 to the result.
Temperature Calculation
Calculating temperature using these formulas involves substitution and arithmetic operations. Let's look at a step-by-step scenario:
- Select the correct formula based on the conversion needed.
- Substitute the known temperature value into the formula.
- Perform the arithmetic to find the converted temperature.
Conversion Formulas
The conversion formulas play an essential role in understanding and calculating temperature changes between Celsius and Fahrenheit. Here's a quick comparison of these formulas:
- Fahrenheit to Celsius: \( C = \frac{5}{9}(F - 32) \)
- Celsius to Fahrenheit: \( F = \frac{9}{5}C + 32 \)