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Question

Zero degree centigrade is equal to what degree Fahrenheit?

A. 100°F

B. 30°F

C. 34°F

D. 32°F   

The correct answer is

D

Understanding Celsius to Fahrenheit Temperature Conversion

Temperature scales are used to measure how hot or cold something is. Two common scales are Celsius (°C) and Fahrenheit (°F). It's often necessary to convert temperatures between these two scales.

The Conversion Formula

To convert a temperature from Celsius (°C) to Fahrenheit (°F), we use a specific formula. This formula relates the two scales based on key reference points, such as the freezing and boiling points of water.

The formula to convert Celsius to Fahrenheit is:

$F = C \times \frac{9}{5} + 32$

Where:

  • $F$ is the temperature in Fahrenheit
  • $C$ is the temperature in Celsius

Calculating 0 Degrees Celsius in Fahrenheit

The question asks for the equivalent of 0 degrees Celsius in Fahrenheit. We can use the conversion formula and substitute $C = 0$ into it.

$F = 0 \times \frac{9}{5} + 32$

First, multiply 0 by $\frac{9}{5}$. Any number multiplied by 0 is 0.

$F = 0 + 32$

Next, add 32 to 0.

$F = 32$

So, 0 degrees Celsius is equal to 32 degrees Fahrenheit.

Why 0°C Equals 32°F

This specific conversion is significant because 0°C is defined as the freezing point of water under standard atmospheric pressure. On the Fahrenheit scale, the freezing point of water is defined as 32°F. This is a fundamental reference point in both temperature scales.

Analyzing the Options

Let's look at the given options in light of our calculation:

  • A. 100°F: This is incorrect. 100°C is the boiling point of water, which is equivalent to 212°F, not 100°F.
  • B. 30°F: This is incorrect. Our calculation shows 0°C is 32°F.
  • C. 34°F: This is incorrect. Our calculation shows 0°C is 32°F.
  • D. 32°F: This matches our calculation. 0°C is indeed equal to 32°F.

Conclusion

Using the standard formula for converting Celsius to Fahrenheit, we found that 0 degrees Celsius corresponds to 32 degrees Fahrenheit. This aligns with the definition of the freezing point of water on both scales.

Revision Table: Temperature Conversion

Celsius (°C) Fahrenheit (°F) Description
0°C 32°F Freezing point of water
100°C 212°F Boiling point of water
About 37°C About 98.6°F Normal human body temperature

Additional Information: Temperature Scales

The Celsius scale is widely used around the world, especially in science and by most countries for everyday temperature reporting. It is a centigrade scale, meaning there are 100 degrees between the freezing point (0°C) and boiling point (100°C) of water.

The Fahrenheit scale is primarily used in the United States. On this scale, the freezing point of water is 32°F, and the boiling point is 212°F. There are 180 degrees between these two points (212 - 32 = 180).

Understanding the relationship and conversion between these scales is important in various fields, including science, engineering, and daily life.

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