Question

3. Bill uses his thermometer and finds the boiling point of ethyl to be 75 degrees. He looks in a reference book and finds that

the actual boiling point of ethyl is 80 degrees. What is his percent error?

Answer 1

6.25%

Step-by-step explanation:

Percent error is calculated by taking the difference of measured value and correct value divided by correct value and multiplied by 100%.

Mathematically,

Percent error = (correct value - measured value)/correct value * 100%

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in the problem given

measured value = 75 degrees Celsius

correct value = 80 degrees Celsius ( as given in reference book)

thus,

Percent error = (80 - 75)/80 * 100%

Percent error = (5/80 )* 100% = 6.25%

Percent error calculated by him is 6.25%.