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1.5 Exercise 31

Avg difficulty 2.5

Indigenous people sometimes cook in watertight baskets by placing hot rocks into water to bring it to a boil. What mass of 500-°C500 - ° \text{C} granite must be placed in 4.00 kg of 15.0-°C15.0 - ° \text{C} water to bring its temperature to 100°C100 ° \text{C}, if 0.0250 kg of water escapes as vapor from the initial sizzle? You may neglect the effects of the surroundings.

OpenStax University Physics Volume 2, 1.5 Phase Changes, exercise 31

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Adapted from University Physics Volume 2 © 2016 Rice University. Licensed under CC BY 4.0. Source: University Physics Volume 2. Imported at revision db44eb9.