Which of the following factors will reduce the accuracy of the measured enthalpy changes? Only tick factors which correc

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Which Of The Following Factors Will Reduce The Accuracy Of The Measured Enthalpy Changes Only Tick Factors Which Correc 1 (73.5 KiB) Viewed 34 times

Which of the following factors will reduce the accuracy of the measured enthalpy changes? Only tick factors which correctly answer the question; ticking other answers will result in a reduced mark. Select one or more: Adding 273.15 to Δ T to convert it from ∘C to K Mixing the substances immediately after a temperature measurement rather than waiting until the specified time to mix them. Using the first temperature measurement after mixing as the temperature of the mixture at the time of mixing . Not stirring the solutions while taking temperature measurements. In parts B and/or C, leaving a little solid NaOH in the sample tube after emptying it into the calorimeter. In this experiment, it was necessary take note of which calorimiter was used (the "white", the "transparent" or the "blue" calorimeter). Why is it necessary to record which type of calorimeter was used? Select one: a. It is important to note what type of calorimeter was used because some of the calorimeters are not compatible with some of the chemicals usec in this experiment. b. Some calorimeters are better at insulating their contents than other calorimeters. So it is important to record the type of calorimeter so the results can be replicated and so we can know which results have the largest error. c. It is important to record the type of calorimeter used just because it is important for scientists to always record everything they do during an experiment. d. Because the calorimeter absorbs heat from the reaction as well as the solution absorbing heat. Different calorimeters are able to absorb differen amounts of heat (i.e. they have different heat capacities) and so you need record the type of calorimeter used so you can accurately calculate the heat of reaction for the process being studied.