Assign18 - PHY 53 Summer 2010 Assignment 18 1 For each of...

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Assignment 18 1. For each of the cycles in Probs. 1-3 of Assignment 17, do the following. a. Find the total heat taken in, for those steps where heat is taken in. b. Find the total work done and the ef±ciency of an engine running on that cycle. c. Find the Carnot ef±ciency for an engine running between the two extreme temperatures in the cycle. 2. One mole of an ideal gas is compressed at constant temperature T from volume V to volume 2 V /3. All the heat released by the gas is absorbed by a block of ice at 0° C. Some of the ice melts; the melted part has mass m . a. Express the heat released in this process in terms of the given quantities and R . b. Express the latent heat of fusion L f for ice in terms of the given quantities. 3. An ice cube of mass 40 g at its melting point (0° C) is placed in a container with 300 g of water at 10° C, and the system is isolated from the surroundings. Use the following (approximate) data: latent heat of fusion of ice L f = 3 × 10 5 J/kg; speci±c heat of water
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This note was uploaded on 10/19/2011 for the course PHYSICS 53L taught by Professor Mueller during the Spring '07 term at Duke.

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Assign18 - PHY 53 Summer 2010 Assignment 18 1 For each of...

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