일반물리학 1 · Temperature, Heat, and the First Law of Thermodynamics · Problem 5
일반물리학 1 — Temperature, Heat, and the First Law of Thermodynamics: Problem 5
5 Nonmetric version: (a) How long does a \(2.0 \times 10^5 \text{ Btu/h}\) water heater take to raise the temperature of \(65 \text{ gal}\) of water from \(70^\circ\text{F}\) to \(100^\circ\text{F}\)? Metric version: (b) How long does a \(59 \text{ kW}\) water heater take to raise the temperature of \(246 \text{ L}\) of water from \(21^\circ\text{C}\) to \(38^\circ\text{C}\)?
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