If a person’s body temperature changes from 310.15 K to 311 K, what was the change in temperature, in degrees Celsius?
A. 1.4 °C
B. 2.5 °C
C. 1.4 K
D. 0.85 °C
E. 0.95 °C
A. Incorrect. This is too great a temperature interval.
B. Incorrect. Re-check the relationships between the temperature scales.
C. Incorrect. This is a temperature different in kelvins; you were asked for Celsius. Also the number is too large—this would be correct if you were converting into Fahrenheit or Rankine.
D. Correct. Because of the origin of the units called kelvin and degree Celsius, a temperature difference of one kelvin is equal to one Celsius degree.
E. Incorrect. Check your arithmetic.
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