Calorimetric Determination Of Soil pH

Calorimetric determination of soil pH. Calorimetry is the process of measuring the amount of heat released or absorbed during a chemical reaction. By knowing the change in heat, it can be determined whether a reaction is exothermic which releases heat or endothermic that absorbs heat. Calorimetry also plays a large part of everyday life, controlling the metabolic rates in humans and consequently maintaining such functions like body temperature 

In Calorimetric determination methods, the colour developed by the soil colour and a suitable indicator and compared with either by the same indicated in various buffer Solutions or with permanent glass colour standard or with colours on the printed card.
The water extracted must be crystal clear and four methods available to achieve this in filtration centrifugation clearing with a poly electrolyte. 


Based on the physical laws of thermal conduction and transfer, the Calorimetric determination measuring principle applies specifically to the transfer of liquids and gases. Under this principle, two sensors monitor the transformation of heat to determine the flow rate of media within a pipeline.

This is achievable regardless of media characteristics such as electrical conductivity, viscosity, and density.

During the process of Calorimetric determination measuring, the temperature of the media can also be recorded. The process is reliant on the cooling of a heated sensor by the liquid that flows around it. The mass of this media is directly responsible for the degree to which the sensor is cooled. Before this takes place, the body of media with the highest temperature must release energy in the form of heat. The amount of energy released is dependent on the temperature difference and the mass flow rate.

Indirect Calorimetre For Calorimetric determination

Indirect calorimetre calculates heat that living organisms produce by measuring either their production of carbon dioxide and nitrogen waste (frequently ammonia in aquatic organisms, or urea in terrestrial ones), or from their consumption of oxygen. Lavoisier noted in 1780 that heat production can be predicted from oxygen consumption this way, using multiple regression. The dynamic energy budget theory explains why this procedure is correct. Heat generated by living organisms may also be measured by direct Calorimetric determination, in which the entire organism is placed inside the calorimeter for the measurement.

A widely used modern instrument is the differential scanning calorimetre, a device which allows thermal data to be obtained on small amounts of material. It involves heating the sample at a controlled rate and recording the heat flow either into or from the specimen

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