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Engineering, 04.12.2019 02:31 dajahp

In the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. a student heats 63.45 grams of tungsten to 99.10 °c and then drops it into a cup containing 82.80 grams of water at 21.83 °c. she measures the final temperature to be 23.73 °c. the heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.59 j/°c. assuming that no heat is lost to the surroundings calculate the specific heat of tungsten. specific heat (w) = j/g°c. 2) in the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. since the cup itself can absorb energy, a separate experiment is needed to determine the heat capacity of the calorimeter. this is known ascalibrating the calorimeter and the value determined is called the calorimeter constant. one way to do this is to use a common metal of known heat capacity. in the laboratory a student heats 91.06 grams of iron to 97.95 °c and then drops it into a cup containing 83.19 grams of water at 24.30 °c. she measures the final temperature to be 31.93 °c. using the accepted value for the specific heat of iron (see the references tool), calculate the calorimeter constant. calorimeter constant = j/°c. 3) in the laboratory a "coffee cup" calorimeter, or constant pressure calorimeter, is frequently used to determine the specific heat of a solid, or to measure the energy of a solution phase reaction. a chunk of copper weighing 18.02 grams and originally at 98.25 °c is dropped into an insulated cup containing 79.08 grams of water at20.18 °c. the heat capacity of the calorimeter (sometimes referred to as the calorimeter constant) was determined in a separate experiment to be 1.83 j/°c. using the accepted value for the specific heat of copper (see the references tool), calculate the final temperature of the water. assume that no heat is lost to the surroundings. tfinal = °c.

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