An athlete running a marathon in 40 degrees Celsius relies on sweating to prevent heatstroke. Which property of water is primarily responsible for this cooling effect?
Q1. An athlete running a marathon in 40 degrees Celsius relies on sweating to prevent heatstroke. Which property of water is primarily responsible for this cooling effect?
Answer: Heat of vaporization
Explanation: High heat of vaporization (574 kcal/kg) allows significant cooling with minimal water loss. Specific heat capacity refers to temperature change, not phase change.