How many calories of are required to heat 731 grams of water from 35°C to 83°C? (Assume that the specific heat of water is 1.00 cal/g·°C). A) 15 cal B) 7.3 × 10² cal C) 2.6 × 10⁴ cal D) 3.5 × 10⁴ cal

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Quizplus · Accepted Answer

The correct answer is D.Explanation:The amount of heat required to raise the temperature of a substance is given by the equation:Q = m * c * ΔTwhere:Q is the heat energy in caloriesm is the mass of the substance in gramsc is the specific heat of the substance in cal/g·°CΔT is the change in temperature in °CIn this problem, we have:m = 731 gc = 1.00 cal/g·°CΔT = 83°C - 35°C = 48°CPlugging these values into the equation, we get:Q = 731 g * 1.00 cal/g·°C * 48°C = 35,208 calTherefore, the amount of heat required to heat 731 grams of water from 35°C to 83°C is 35,208 calories, which is closest to choice D.

How Many Calories of Are Required to Heat 731 Grams