Which of the following represents a different temperature than the other three?
Group of answer choices

15°C

475°K

519°R

59°F

To solve this, we need to convert all the temperatures to the same unit. Let's use Celsius (°C) as the reference unit. We'll convert the other three values (°K, °R, °F) into Celsius to compare them.

### 1. 15°C 
This is already in Celsius.

### 2. 475°K (Kelvin)
To convert Kelvin to Celsius, use the formula:
\[
°C = K - 273.15
\]
\[
°C = 475 - 273.15 = 201.85°C
\]

### 3. 519°R (Rankine)
To convert Rankine to Celsius, first convert Rankine to Kelvin using the formula:
\[
K = \frac{R}{1.8}
\]
\[
K = \frac{519}{1.8} = 288.33 K
\]
Now, convert this Kelvin value to Celsius:
\[
°C = 288.33 - 273.15 = 15.18°C
\]

### 4. 59°F (Fahrenheit)
To convert Fahrenheit to Celsius, use the formula:
\[
°C = \frac{(°F - 32)}{1.8}
\]
\[
°C = \frac{(59 - 32)}{1.8} = 15°C
\]

### Conclusion:
- 15°C = 15°C
- 475°K = 201.85°C
- 519°R ≈ 15.18°C
- 59°F = 15°C

The temperature **475°K** represents a different temperature than the other three. The other three temperatures are all approximately 15°C.

Would you like more details or have any questions?

Here are five related questions:
1. How do you convert Celsius to Kelvin?
2. What is the Rankine scale used for?
3. Why do scientists use Kelvin in thermodynamic calculations?
4. How does the Fahrenheit scale compare to Celsius?
5. Can temperatures in Kelvin ever be negative?

**Tip**: Remember that the Kelvin scale is absolute and begins at 0 K, which is absolute zero, the lowest possible temperature.

Which of the following represents a different temperature than the other three? Group of answer choices: 15°C, 475°K, 519°R, 59°F.

Compare different temperature scales by converting 15°C, 475°K, 519°R, and 59°F into Celsius. This problem involves key thermodynamic concepts and temperature conversion formulas, suitable for Grades 10-12 students.

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