Question

A student finds that the boiling point of water in a particular experiment is 97.8°C. If the actual boiling point of water is 99.4°C, calculate the percentage error.

Answer 1

Experimental value of boiling point of water = B.P₁ = 97.8°C

Actual value of boiling point of water = B.P₂ = 99.4°C

Absolute error = B.P₂ – B.P₁ = 99.4 – 97.8 = 1.6°C

Percentage error = `"Absolute error"/"Actual value"xx100`

= `1.6/99.4xx100`

= 1.60%