Question

What is the % error if the theoretical value of the enthalpy of a reaction is 99 kJ and the experimental value is 70 kJ?

a) 29.29%
b) 41.41%
c) 70.71%
d) 71.71%

Answer 1

Option (A), The percent error between the theoretical and experimental enthalpy values is calculated using the provided formula, yielding a 29.29% error.

Step-by-step explanation:

To calculate the percent error of the experimental enthalpy change from the theoretical value, use the formula:

Percent Error = \( \frac{Theoretical Value} \times 100 \% \)

Plugging in the given values:

Percent Error = \( \frac99 kJ - 70 kJ{99 kJ} \times 100 \% \)

Percent Error = \( \frac{29 kJ}{99 kJ} \times 100 \% \)

Percent Error = 29.29\%

So, the correct option is (a) 29.29%.