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# Consider 50 g of hot water at 80°C poured into a cavity in ISBN: 9780321909107 29

## Solution for problem 4P Chapter 17

Conceptual Physics | 12th Edition

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Problem 4P

Consider 50 g of hot water at 80°C poured into a cavity in a very large block of ice at 0°C. What will be the final temperature of the water in the cavity? Show that 50 g of ice must melt in order to cool the hot water down to this temperature.

Step-by-Step Solution:

Solution 4P Part 1 Since the ice block is very large, all the heat released by water will be used to melt some amount of the ice surrounding the water. When the temperature of the water comes down to 0°C, both the water and the ice will have same temperature and hence there will be no exchange of heat. So the final temperature of the block and water will be 0°C. Part 2 Step 1 Let us consider the mass of the ice that will melt is . ice The latent heat of melting of ice is given by L= 80 cal/g ice So the heat required to melt iceamount of ice is given by Q ice= m ice ice mice0 cal/g) Step 2 Heat released by the hot water is given by Q water= m water water water Where m = 50 g is the mass of the water, c = 1 cal/g°C is the specific heat of the water and water water T water (80°C 0°C) = 80°C is the change in the temperature of the water. Hence we have Q = (50 g)(1 cal/g°C)(80°C) = 4000 cal water

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##### ISBN: 9780321909107

This full solution covers the following key subjects: Water, temperature, cavity, ice, hot. This expansive textbook survival guide covers 45 chapters, and 4650 solutions. This textbook survival guide was created for the textbook: Conceptual Physics, edition: 12. Since the solution to 4P from 17 chapter was answered, more than 388 students have viewed the full step-by-step answer. The answer to “Consider 50 g of hot water at 80°C poured into a cavity in a very large block of ice at 0°C. What will be the final temperature of the water in the cavity? Show that 50 g of ice must melt in order to cool the hot water down to this temperature.” is broken down into a number of easy to follow steps, and 52 words. The full step-by-step solution to problem: 4P from chapter: 17 was answered by , our top Physics solution expert on 04/03/17, 08:01AM. Conceptual Physics was written by and is associated to the ISBN: 9780321909107.

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