1. Typical temperatures in the interior of the Earth and Sun are about `4.0 times 10^3°C` and `15times10^6°C`, respectively. (a) What are these temperatures in kelvins? (b) What percent error is made in each case if a person forgets to change °C to K?
1. Typical temperatures in the interior of the Earth and Sun are about 4.0 times 10^3°C and 15times10^6°C, respectively. (a) What are these temperatures in kelvins? (b) What percent error is made in each case if a person forgets to change °C to K?
Hint
`T(K) = T(C) +273.15`
Answer
(a) `T(K)_(Earth) = 4.3times10^3\ K` `T(K)_(Sun) = 15times10^6\ K` (b) error_(Earth) `=6.3%` error_(Sun) `=2times10^(-3)%`
Show Steps
Given: T(C)_(Earth) = 4.0times10^3\ °C` T(C)_(Sun) = 15 times 10^6\ °C` Equation: `T(K) = T(C) +273.15` (a) `T(K)_(Earth) = 4.0times10^3\ °C + 273.15 = 4.3times10^3\ K` `T(K)_(Sun) = 15 times 10^6\ °C\ °C + 273.15 = 15times10^6\ K` (b) errer `= (∆T)/(T(K))` error_(Earth) `= 273/4300 = 0.063=6.3%` error_(Sun) `= 273/(15times10^6\ °C)= 0.00002=2times10^(-3)%`