- #1
PhizKid
- 477
- 1
Homework Statement
Convert 4.18 joules/(grams * Kelvin) to calories/(pound * Farenheit)
(heat)
Homework Equations
1 Kelvin = -272 Celcius
1 Calorie = 4.18 Joules
1 Celcius = 33.8 Fahrenheit
1 lb. = 454 grams
The Attempt at a Solution
[itex]\frac{4.18 Joules}{1 gram \cdot 1 Kelvin} \cdot \frac{-272 Kelvin}{1 Celcius} \cdot \frac{1 Celcius}{33.8 Fahrenheit} \cdot \frac{1 Calorie}{4.18 Joules} \cdot \frac{4.54 grams}{1 pound} \\\\
\frac{-272 \cdot 4.54 calories}{33.8 lb. \cdot Fahrenheit} \\\\
\frac{-36.5349 calories}{lb. \cdot Fahrenheit}[/itex]
But the solution is 252 cal/(lb. * fahrenheit). What did I do incorrectly?