I need help with the following question...

Thank You

One degree celsius indicates the same temperature change as...
one degree fahrenheit
one kevin
5/9 degree fahrenheit
9/5 kelvin

one degree Kelvin.

To answer this question, we need to convert temperature units from Celsius to Fahrenheit and Kelvin.

To convert from Celsius to Fahrenheit, we can use the formula:
°F = (°C × 9/5) + 32

To convert from Celsius to Kelvin, we can use the formula:
K = °C + 273.15

Now, let's apply these formulas to the answer options and find out which one is correct:

1. One degree Fahrenheit: To convert this to Celsius, we can use the formula: °C = (°F - 32) × 5/9. By substituting the value of 1 °F, we get:
°C = (1 - 32) × 5/9 = -17.22 °C. This option is not correct because one degree Fahrenheit is not equal to one degree Celsius.

2. One Kelvin: Since Kelvin and Celsius are in the same scale, one degree Kelvin is equal to one degree Celsius. So, this option is correct.

3. 5/9 degree Fahrenheit: Using the formula to convert Fahrenheit to Celsius, we get:
°C = ((5/9) × (5/9)) × °F = (25/81) × °F. Since 5/9 °F is converted to (25/81) °C, this option is not correct because it does not represent the same temperature change as one degree Celsius.

4. 9/5 Kelvin: Since Kelvin and Celsius are in the same scale, one degree Kelvin is equal to one degree Celsius. So, this option is not correct.

Based on the analysis, the correct answer is: one Kelvin indicates the same temperature change as one degree Celsius.