APS becomes zero when savings are zero. Savings are calculated as:
\[ {Savings} = {Income} - {Consumption}. \]
From the table: At an income of rupees100, consumption is also rupees 100, resulting in zero savings. Therefore, APS becomes zero at rupees 100.
A certain reaction is 50 complete in 20 minutes at 300 K and the same reaction is 50 complete in 5 minutes at 350 K. Calculate the activation energy if it is a first order reaction. Given: \[ R = 8.314 \, \text{J K}^{-1} \, \text{mol}^{-1}, \quad \log 4 = 0.602 \]