The rate constants for decomposition of acetaldehyde have been measured over the temperature range \( 700 \) — \( 1000 \) \( \mathrm{K} \). The data has been analysed by plotting \( \ln k \) vs \( \frac{10^3}{T} \) graph. The value of activation energy for the reaction is __________ \( \mathrm{kJ\ mol^{-1}} \). (Nearest integer) (Given: \( R = 8.31\ \mathrm{J\ K^{-1}\ mol^{-1}} \))
