Among the given options, T = tc+ 273.15 is the correct relation between the Kelvin temperature (T) and the Celsius temperature (tc). The Kelvin scale is an absolute, thermodynamic scale with the two defining points: absolute zero at 0 and the triple point of water at 273.16. The Celsius temperature is defined to be exactly 273.15 less than the Kelvin temperature. The Fahrenheit scale is defined so that the Fahrenheit temperature is 32 more than 1.8 times the Celsius temperature. Following are the conversion formulae, Celsius to Fahrenheit °F=
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×(°C)+32 Kelvin to Fahrenheit °F=
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(°K−273)+32 Fahrenheit to Celsius °C=
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(°F−32) Celsius to Kelvin K = °C + 273 Fahrenheit to Kelvin K=