Question

A piece of dry ice (solid carbon dioxide) sitting in a classroom has a temperature of approximately \(-79^{\circ} \mathrm{C}\). a) What is this temperature in kelvins? b) What is this temperature in degrees Fahrenheit?

Short answer

Question: Convert -79°C to kelvins and degrees Fahrenheit. Answer: The temperature in kelvins is 194.15 K, and the temperature in degrees Fahrenheit is -102.2°F.

Step-by-step solution

Convert degrees Celsius to kelvins

To convert the temperature from degrees Celsius to kelvins, we'll use the formula: K = C + 273.15 Plugging in the given temperature, we get: K = -79 + 273.15

Calculate the temperature in kelvins

Now, let's perform the calculation to find the temperature in kelvins: K = -79 + 273.15 = 194.15 The temperature in kelvins is 194.15 K.

Convert degrees Celsius to degrees Fahrenheit

To convert the temperature from degrees Celsius to degrees Fahrenheit, we'll use the formula: F = (9/5)*C + 32 Plugging in the given temperature, we get: F = (9/5)*(-79) + 32

Calculate the temperature in degrees Fahrenheit

Now, let's perform the calculation to find the temperature in degrees Fahrenheit: F = (9/5)*(-79) + 32 = -102.2 The temperature in degrees Fahrenheit is -102.2°F.