Because of the high heat and low humidity in the summer in Death Valley,California,a visitor requires about one quart of water for every two miles traveled on foot.If the density of water is 0.990 g/mL at 45°C,how many kilograms of water are required for a person to walk 30 kilometers in Death Valley? A)8.7 kg B)70 kg C)3.5 × 10² kg D)7.0 × 10² kg

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Quizplus · Accepted Answer

First, convert 30 kilometers to miles (1 mile = 1.60934 kilometers), which gives approximately 18.64 miles. Since a visitor requires about one quart of water for every two miles, this means they would need about 9.32 quarts for 18.64 miles. Since there are approximately 0.946 liters in a quart and 1 liter of water at 45°C weighs approximately 0.990 kg (given density), the total weight of water required is 9.32 quarts * 0.946 liters/quart * 0.990 kg/liter ≈ 8.7 kg.

Because of the High Heat and Low Humidity in the Summer