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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?
Wiki User
∙ 11y ago
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
Wiki User
∙ 13y ago
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Why does a calorimeter have a doubled- walled container?
so that the calorimeter can keep in the heat of the liquid in for an accurate measurment of the change in temperature.
Which alloy is used in making accurate laboratory balances?
Magnalium
What is a burette?
A burette is a glass tube with fine gradations and a stopcock at the bottom, used in laboratory procedures for accurate fluid dispensing and titration.
What is meant by calorimetry?
Measurement of the amount of heat evolved or absorbed in a chemical reaction, change of state, or formation of a solution
What is the function of thermometer in laboratory?
A thermometer is used for measuring accurate temperatures. Also using the degrees Fahrenheit and Celsius.
How can you find the calorific value of coal?
Calorific Value of Coal can be determined by employing an apparatus called the Bomb Calorimeter. However, this instrument is expensive. Alernatively, you can send the sample to an INDEPENDENT laboratory who normally carry out the test for a certain fee. Less accurate measurements can be made using a thermometer, an insulated contained and a known amount of coal.
What are the limitations of saparating and throttling calorimeter?
There must be at least 10 degrees of superheat in the calorimeter for accurate results.
Why does a calorimeter have a doubled- walled container?
so that the calorimeter can keep in the heat of the liquid in for an accurate measurment of the change in temperature.
How can errors be minimized to determine specific heat?
Errors in measuring specific heat can be minimized by the following : ( 1 ) having a very well insulated calorimeter\ ( 2 ) having a well calibrated calorimeter ( 3 ) having accurate measurements of the masses ( 4 ) having accurate measurements of the temperatures.
What is the calorific value of sludge in waste water?
Basically, calorific value of any sludge depends on its constitution. Since sludge is not defined composition wise, its accurate calorific value doesn't exist. And another important factor which affects the calorific value is the end product that's generated out of sludge. eg if biogas is generated, then calorific value would be 22,000 kJ/Nm3 (http://www.currenta.com/pages/1577/life_2008_final_engl.pdf) topic open for discussion!!
What is the most accurate laboratory apparatus used in measuring the volume of liquid?
the pipette is the most accurate
Which alloy is used in making accurate laboratory balances?
Magnalium
Which apparatus is more accurate clinical thermometer or laboratory thermometer?
Lab thermometer.
How is a tubular pregnancy diagnosed?
While home pregnancy tests are very accurate, they are less accurate than a pregnancy test evaluated by a laboratory.
What is most accurate device to measure voltage?
Laboratory grade instruments give the most accurate values but are very expensive. Next is bench multimeters. High quality ones are also expensive, but less than laboratory grade instruments
What is the uses of beaker in the laboratory?
The beaker is a container for liquid substances in the laboratory. It is less accurate than the graduated cylinder because its line have bigger spaces/intervals
What is advantages of trigger transistorized ignition than previous system?
more accurate spark timing and combustion
