Question

A student determined the heat of fusion of water to be 88 calories per gram if the accepted value is 80 calories per gram, what is the students percent error?

Answer 1

The answer is 10%

The percent error is used to determine the precision of calculations. It can be expressed as:

`e = (v-v_(1) )/(v_1) *100`
where:
e - the percent error,
v - experimental value (measured value),
v₁ - theoretical value,

It is given:
e = ?
v = 88 calories
v₁ = 80 calories

Thus, the percent error is:

`e = (88-80)/(80)*100 = (8)/(80)*100=0.1*100=10%`