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What error is introduced by including only the water in the calorimeter as the surroundings?
By considering only the water in the calorimeter as the surroundings, the error introduced is neglecting the heat exchange between the water and the actual surroundings outside the calorimeter. This can lead to an inaccurate measurement of the heat flow between the system being studied and the surroundings, affecting the calculated heat capacity or enthalpy change.
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Why does a bomb calorimeter give more accurate values of heat of combustion and of kilogram calorific values than simpler laboratory methods?
It's: more accurate because it leaves less room for human error, faster, excludes environmental variables that may not have been considered, it also gives you the energy content of the substance being burned which means that you do not have to work it out
The ratio of an error to an accepted value is called what?
The ratio of an error to an accepted value is called the relative error. It is a measure of how large the error is compared to the accepted value. By expressing the error relative to the accepted value, it allows for a standardized comparison between different measurements or experiments.
The main cause for most collisions?
The main cause for most collisions is driver error, including speeding, distracted driving, running red lights, and impaired driving. These actions can lead to a lack of focus, reaction time, or control, resulting in accidents.
Where is there possibility for error in DNA fingerprinting?
Human error.
When was Parallax Error Beheads You created?
Parallax Error Beheads You was created on 2008-10-20.
What are the sources of error in the experiment calorimetry measurement?
Energy loss due to leaks in the calorimeter
What are sources of error in latent heat experiment?
Sources of error in a latent heat experiment can include inaccuracies in measuring the mass and temperature of the substance, heat loss to the surroundings, incomplete insulation of the calorimeter, uncertainty in the specific heat capacity of the material, and variations in the pressure during the experiment. It's crucial to account for these sources of error to ensure accurate results.
What error is introduced by the thickness of the mirror?
The error introduced by the thickness of the mirror is known as "mirror displacement error." This error occurs because the optical path length in the mirror varies with the angle of incidence due to the mirror's thickness, leading to inaccuracies in measurements or imaging.
What is error code 418?
Error code 418 means "I am a Teapot". The error may also be Short and/or Stout. This error code was introduced as an April fools joke.
What error will be introduced if you fail to set the xero point of the balance before making reading?
An error in balancing is called an "error of measurement". The type of error that will be introduced if one fails to set the zero point of the balance before making the reading is a systematic error.
What error would be introduced into the value of J in failing to take into account the heat absorbed by the stirrer?
noob
What error would be introduced into the value of J on failing to take into account the heat absorbed by the stirrer?
' J ' means Joules , unit for the amount of Energy in Physical Science... Heating Effect of Current ... Joule's Constant = Electrical Energy in Joules / Amount of Heat in calories Electrical Energy in Joules = Voltage in volts x Current in amperes x Time in seconds Amount of Heat in calories = Mass of Water x Specific Heat of Water x Change in Temperature of Water + Mass of Calorimeter x Specific Heat of Calorimeter x Change in Temperature of Calorimeter ANSWER: The Amount of Heat will be very hot and Joule's Constant will be too big which will make it not realistic as part of the experimental calculations. You must know that it is necessary to get the temperature in the state of equilibrium. Remember that, due to the use of the metal stirrer which absorbed the heat energy, the temperature of water inside the calorimeter had decreased partially or was delayed in rising up despite to the fact that the electrical energy generated is proportionally equal to the increase in temperature of the calorimeter.
What is Unit regression testing?
It is running the same tests that found the error again after an error has been fixed to ensure it has been fixed and no other errors have been introduced as a result of what was done.
What are sources of error in specific heat capacity experiment?
There are many possible causes of errors when doing the experiment on finding the specific heat capacity of specimens. Here are a few facts that caused the errors. (1)Heat loss: during the experiment while relocating the specimens from the hotplate into the calorimeter took a few seconds and that could be one of the errors. (2)System error: through the thermometer as well as possibly the inaccurate calibration. (3)Instrumental error: the calorimeter which had used in this experiment was restored calorimeter which could not be well insulated. (4)Additional energy: if stirring the water to prevent non-uniform heating, the addition of energy to the water, from the stirring device. (5)Heat remained: although changing the water from one testing to another testing, the heat still remain in calorimeter and can be understand as residual heat energy inside the calorimeter. (6)Temperature measurement: time taken is not long enough while the specimen was in the water and reading the temperature. (7)Human error: reading the thermometer inaccurately and inappropriate uses of apparatus such as placing the calorimeter closely to the hotplate.
Who is the statistician named slovin?
he was the one who introduced the slovin's formula, the estimated sample size given the population size and margin of error
What error would be introduced into the determination of the density of the regularly shape solid if the solid were hollow?
If the regularly shaped solid were hollow, the error introduced in the determination of density would be an underestimate of the true density. This is because the calculation of density involves dividing the mass by the volume, which would mistakenly include the volume of the hollow space, leading to a lower density value.
What is the possible errors Boys gas calorimeter?
This is a practical dealing with heat energy. So we had many assumptions when doing this practical. We assumed that the gas is an ideal gas, because we used combined gas low at the very first beginning. Next we had an issue on the heat loss due to smoke produced by the calorimeter. When considering heat energy loss from the smoke produced is a major loss. This made a considerable error in our calculations. Heat loss through the conductance from the calorimeter is another issue that we faced. So for the calculation we assumed the heat loss due to these errors were null. The temperature measured near inlet and outlet flow of water had an error due to contact of copper spiral with the thermometers, it is not a big issue in our calculations. But when we consider the flow rate major error could be occurred. It is because flow of water is not firm and constant. To minimize this issue we used pressure head. It was a good solution for the error. But there may be a considerable error occurred. Errors done by the observing students and errors in the measuring equipments cannot be corrected. When we done this practical this was the main issue we had to face. The manometer reading was very small and in two different trials when changing the flow rate of gas, the difference was so small. Observation error occurred in that measurement. The pressure measured is relatively small with the absolute value. So we did not see a considerable change in our calculations. Another issue is that the readings taken from the thermometers. Thermometers are calibrated one by one degrees of Celsius (minimum value of readings were 10C). So we had to face an error of accuracy. This made a vast difference in our calculation because inlet and outlet temperatures play a major role in the equation. We can see that from the equation of calculating the calorific value. The calorific value should be a constant for a certain gas we consider. But from the experiment values we got and by the calculations, the calorific value is different in the 3 trials we have done. It is because of the above mentioned errors and issues.
