How to Convert Wattage to Degrees
- 1). Multiply the wattage acting on the substance by the time it spends acting on it. For instance, if a power of 2,500 watts runs for 180 seconds:
2,500 --- 180 = 450,000 joules of energy - 2). Divide this answer by the substance's mass, measured in grams. For instance, if you heat 2,000 grams of a substance:
450,000 ÷ 2,000 = 225 - 3). Divide this result by the substance's specific heat capacity. For instance, if you are calculating the temperature rise in water, which has a specific heat capacity of 4.186 j/g K:
225 ÷ 4.186 = 53.8
This is the number of degrees Celsius by which the object's temperature rises.
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