If you add 700 kJ of thermal energy to 700 g of water originally at 70.0°C,how much water is left in the container? The latent heat of vaporization of water is 22.6 × $10 ^ { 5 }$ J/kg,and its specific heat capacity is 4186 J/kg ∙ K.

Question

Quizplus · Accepted Answer

First, calculate the energy needed to raise the temperature of water from 70°C to 100°C using Q = mcΔT. Then, use the remaining energy to find how much water vaporizes using Q = mL. Subtract the mass of vaporized water from the initial mass to find the remaining water.

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If You Add 700 KJ of Thermal Energy to 700 $10 ^ { 5 }$