Final answer:
To find the temperature equivalent of -121°F in Kelvins, convert the Fahrenheit to Celsius and then to Kelvin, resulting in 188.71 K.
Step-by-step explanation:
To find the inverse of a function in chemistry, specifically in the context of Charles's Law and converting temperatures, we apply the reciprocal form of the law and the appropriate temperature conversion formulas. Firstly, we must convert the initial temperature to Kelvin. The formula for this conversion is TK = Tc + 273, where TK is the temperature in Kelvin and Tc is the temperature in degrees Celsius.
For the equivalent temperature of -121°F in Kelvins, we must first convert Fahrenheit to Celsius using the formula °C = (°F - 32) × 5/9, and then apply Kelvin conversion. Here's the step-by-step calculation:
Convert -121°F to Celsius: °C = (-121 - 32) × 5/9 = -84.44°C.
Convert -84.44°C to Kelvin: TK = -84.44 + 273.15 = 188.71 K.
Therefore, -121°F is equivalent to 188.71 Kelvins.