How is absolute temperature in Kelvin obtained from a Celsius reading?
AMultiply the Celsius value by 100
BSubtract 273 from the Celsius value
CDivide the Celsius value by 273
DAdd 273 to the Celsius value
Answer & Solution
Correct answer: D. Add 273 to the Celsius value
1. In the free energy equation the symbol T refers to absolute temperature in Kelvin.
2. Kelvin is obtained by taking degrees Celsius and adding 273.
3. Subtracting instead would give a negative value for ordinary laboratory temperatures, which absolute temperature cannot take.
4. So a standard biological temperature of 25 degrees Celsius corresponds to 298 Kelvin.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 6 "Metabolism", section 6.2 Potential, Kinetic, Free, and Activation Energy_
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