Assignment Chapter 6 Essay

615 WordsSep 4, 20123 Pages
6.29 Part 1 a) In an insulated container, there is a mix of 200 grams of water at a temperature of 80o with 100 grams of water at a temperature of 20o. After this mixture has occurred, the resulting temperature of the water is 60oC . With this information, it can be seen that there was a 20oC change of hot water and a 40oC change in cold water. 200g: 80oC - 60oC = H(hot water sample) change of 20oC 100g: 20oC – 60oC = C(cold water sample) change of 40oC b) During this mixture there was a heat transfer that was from hot water to cold water. c) The quantity of heat transferred from one sample to the other was 20oC d) The comparison between the quantity of heat transferred to or from the hot water sample to that of the quantity of heat transferred to or from the cold water sample can be summarized down to that they double. e) The reason that there is a greater temperature change in the cold water sample than the temperature change in the hot water sample is that there is a greater amount of hot water in the sample. f) If a sample of hot water were to be mixed with a sample of cold water that has twice its mass, the predicted temperature change of the hot water sample would be greater than the cold water sample. This would be caused by the greater mass of the cold water sample. The result of this experiment would be an inverse to that of question A above. g) If two different samples of water were mixed resulting in one of the samples increasing by 20oC and the other sample to drop 60oC, the sample that dropped by 60oC would have less mass than that of the sample increasing by 20oC. h) There is a 7gram sample of hot water that is mixed with a 3gram sample of cold water. Knowing this, there would be a greater temperature change in the cold water sample than that of the hot water sample due to the fact that the cold water

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