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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Shweta Thakur posted an Question
July 21, 2020 • 05:00 am
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30 points
30 points
- IIT JAM
- Chemistry (CY)
What is difference between constant volume and constant pressure calorimeter
what is difference between constant volume and constant pressure calorimeter
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Priyanshu kumar Best Answer
A constant-pressure calorimeter measures the change in enthalpy of a reaction at constant pressure. Constant-volume calorimeters, such as bomb calorimeters, are used to measure the heat of combustion of a reaction.
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check this link too Shweta https://courses.lumenlearning.com/boundless-chemistry/chapter/calorimetry/
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got this Shweta??
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shweta have you read this??
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yes sir pd liya
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Suman Kumar![best-answer]()
Constant-pressure, as the name suggests, measures the change in enthalpy of a solution-based reaction whilst maintaining a constant pressure. These are the simplest types of calorimeters, and a common example is the one used by high-school students to measure the heat of a reaction using a polystyrene cup, a lid with two holes, a thermometer and a stirring rod.
Bomb calorimetry is typically used to measure the enthalpy of combustion in a reaction. As such, these types of calorimeters are robust, generally made of steel and use an oxygenated atmosphere (for combustion purposes). Due to the rigidity of the calorimeter itself, most reactions in bomb calorimeters occur at a constant volume. These calorimeters are able to withstand the explosive effects of both the induced pressure and the exothermic release during the reaction process.
A constant-pressure calorimeter measures the change in enthalpy of a reaction occurring in solution during which the atmospheric pressure remains constant.
https://www.google.com/url?sa=t&source=web&rct=j&url=https://en.m.wikipedia.org/wiki/Calorimeter&ved=2ahUKEwj3n6qHtt3qAhVSOSsKHQ6fDAIQFjAYegQIBBAB&usg=AOvVaw0-3egGeWyDWK6j6NZAYtSC&cshid=1595303183135..... Complete details
Sweta you deleted the question
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