If the Celsius temperature is 25°C, what is Kelvin?

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Multiple Choice

If the Celsius temperature is 25°C, what is Kelvin?

Explanation:
Converting Celsius to Kelvin uses the offset 273.15 because Kelvin and Celsius have the same degree size but Kelvin starts 273.15 units lower. So to get Kelvin from Celsius, add 273.15. For 25°C, add 273.15: 25 + 273.15 = 298.15 K. The closest valid option is 298 K, which is why that choice is correct. The exact value is 298.15 K. The other numbers correspond to different Celsius temperatures: 0°C is 273 K, 50°C is 323 K, and −18°C is 255 K.

Converting Celsius to Kelvin uses the offset 273.15 because Kelvin and Celsius have the same degree size but Kelvin starts 273.15 units lower. So to get Kelvin from Celsius, add 273.15.

For 25°C, add 273.15: 25 + 273.15 = 298.15 K. The closest valid option is 298 K, which is why that choice is correct.

The exact value is 298.15 K. The other numbers correspond to different Celsius temperatures: 0°C is 273 K, 50°C is 323 K, and −18°C is 255 K.

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