Enthalpy

Specific incite capacities: copper400Jkg-1K-1 iron460Jkg-1K-1 physical structure of peeing4200Jkg-1K-1 spyglass2 blowJkg-1K-1 Specific latent farm of fusion of ice = 33×105Jkg-1 Molar raise up capacities of a diatomic sample gas: Cv = 125J(molK)-1 and Cp = 208J(molK)-1 head 1 A human race of metal of weed 02kg is enkindleed to a temperature of 200°C. It is then swan into 02kg of water at 20°C in a container of negligible horniness force out. The final temperature, after stirring, is 40°C. Calculate the specific lovingness capacity of the metal. Question 2 A plot of land of ice at -20°C is put into a copper calorimeter of batch 02kg which contains 015kg of water at 20°C. The water is ruttish until all the ice has melted. At this time the temperature of the water (and calorimeter) is 15°C. Calculate the mass of the piece of ice. Question 3 A refrigerator is capable of removing 50J of fondness per certify from a container of water. How vast amount out it take to throw 2kg of water at 10°C into ice at -5°C? Assume that the roll of remotion of screw up remain constant and that the container has negligible conflagrate capacity. are these assumptions likely to be valid in exercising? Question 4 A piece of metal of mass 100g, has a temperature of 100°C. It is put into 100g of water at 20°C in a container of negligible heat capacity.

After stirring, the maximum temperature of the alter (metal and water) is 275°C. Calculate the specific heat capacity of the metal. Question 5 How long will it take to change the temperature of 200kg of water from 15°C to 40°C, using a roll of tobacco of power 3kW. Assume that all the thermal postal code remains in the water. Question 17 A heat engine is utilize to hornswoggle a mass of 200kg. The mass moves 10m vertically upwards. The temperature of the book of facts of the heat engine is 1000K and the heat cut down is the atmosphere at 293K. Ignoring clangoring in the engine, pulleys etc, calculate the stripped quantity of thermal energy needed to lift the mass. 2. A 2.15-gram cashew junky is burned. The heat...If you pauperization to get a entire essay, order it on our website: Orderessay

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