1. Chetan's share is \( \frac{1}{4} \), leaving \( \frac{3}{4} \) to be shared between Ashu and Basu. 2. Ashu and Basu sacrifice equally: \[ \text{Ashu's new share} = \frac{2}{3} \times \frac{3}{4} + \frac{1}{8} = \frac{13}{24}. \] \[ \text{Basu's new share} = \frac{1}{3} \times \frac{3}{4} + \frac{1}{8} = \frac{5}{24}. \] 3. Chetan's share is \( \frac{1}{4} = \frac{6}{24} \). Thus, the new ratio is \( 13:5:6 \). Hence, the correct answer is (A).
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: \[ R = 8.314 \, \text{J K}^{-1} \, \text{mol}^{-1}, \quad \log 4 = 0.602 \]