At 25°C, a reaction is complete in 4 h. Approximately what temperature (in °C) must be used to cause — Chemical Kinetics Chemistry Question

💡 Solution & Explanation

The time required decreases from 4 h (240 min) to 30 min, meaning the reaction rate has increased by a factor of 240 / 30 = 8. Since the temperature coefficient is 2, the rate doubles for every 10°C rise. An 8-fold increase (2^3) requires three 10°C intervals, i.e., a 30°C increase. Final temperature = 25°C + 30°C = 55°C. Therefore, correct answer is 0055.