MDCAT Biology MCQ #935

During intense exercise, a human body loses heat through the evaporation of sweat. The latent heat of vaporization for water is:

MDCAT Biology MCQ #935

  1. Question 1

    Q1. During intense exercise, a human body loses heat through the evaporation of sweat. The latent heat of vaporization for water is:

    • A) 245 kcal/kg
    • B) 574 kcal/kg
    • C) 80 kcal/kg
    • D) 1000 kcal/kg

    Answer: 574 kcal/kg

    Explanation: Water requires 574 kcal/kg for vaporization, which is significantly higher than other liquids, facilitating effective cooling through perspiration.