Using K = C + 273, what is the Kelvin temperature when C = 25°C?

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Multiple Choice

Using K = C + 273, what is the Kelvin temperature when C = 25°C?

Explanation:
Kelvin and Celsius differ by a constant offset because Kelvin starts at absolute zero. To convert, add the offset: K = C + 273 (in this problem; the exact value is 273.15). For 25°C, K = 25 + 273 = 298 K. If you used the precise offset, you’d get about 298.15 K, but with the given relation, 298 K is the expected result. So 25°C corresponds to 298 K, placing it just above room temperature.

Kelvin and Celsius differ by a constant offset because Kelvin starts at absolute zero. To convert, add the offset: K = C + 273 (in this problem; the exact value is 273.15). For 25°C, K = 25 + 273 = 298 K. If you used the precise offset, you’d get about 298.15 K, but with the given relation, 298 K is the expected result. So 25°C corresponds to 298 K, placing it just above room temperature.

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