en>Chjoaygame: virtual oscillators

2013-11-16T02:47:40Z

virtual oscillators

← Older revision		Revision as of 04:47, 16 November 2013
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	~~Hi there~~. ~~Let me begin~~ by ~~introducing~~ the ~~author~~, ~~her name~~ is ~~Myrtle Cleary~~. ~~For years I've been working as~~ a ~~payroll clerk~~. ~~To gather cash~~ is ~~one~~ of the ~~issues I love most. California is exactly where her house is but she requirements to transfer simply because~~ of ~~her family~~.<br><br>~~Feel free to surf to my page~~ ... ~~[http~~:/~~/javly~~.~~com/?p~~=~~56362 http~~:~~//javly.com/?p=56362~~]		A '''calorimeter constant''' (denoted ''C''<sub>cal</sub>) is a [[Constant (mathematics)\|constant]] that quantifies the [[heat capacity]] of a [[calorimeter]]. It may be calculated by applying a known amount of [[heat]] to the calorimeter and measuring the calorimeter's corresponding change in [[temperature]]. In SI units, the calorimeter constant is then calculated by dividing the change in [[enthalpy]] (Δ''H'') in [[joule]]s by the change in temperature (Δ''T'') in [[kelvin]]s or degrees Celsius:
			:<math>C_\mathrm{cal} = \frac{\Delta{H}}{\Delta{T}}</math>
			The calorimeter constant is usually presented in units of joules per degree Celsius (J/°C) or joules per kelvin (J/K). Every calorimeter has a unique calorimeter constant.

			==Uses==
			The calorimeter constant is used in [[Calorimetry#Constant-pressure\|constant pressure calorimetry]] to calculate the amount of heat required to achieve a certain raise in the temperature of the calorimeter's contents.

			===Example===
			To determine the change in [[enthalpy]] in a [[neutralization reaction]] (Δ''H''<sub>neutralization</sub>), a known amount of [[Base (chemistry)\|basic solution]] may be placed in a calorimeter, and the temperature of this solution alone recorded. Then, a known amount of [[Acid (chemistry)\|acidic solution]] may be added and the change in temperature measured using a [[thermometer]]. The difference in temperature (Δ''T'', in units K or °C) may be calculated by subtracting the initial temperature from the final temperature. The enthalpy of neutralization Δ''H''<sub>neutralization</sub> may then be calculated according to the following equation:
			:<math>\Delta{H_\mathrm{neutralization}} = C_\mathrm{cal} \cdot \Delta{T}</math>.
			Regardless of the specific [[chemical process]], with a known calorimeter constant and a known change in temperature the heat added to the system may be calculated by multiplying the calorimeter constant by that change in temperature.

			==See also==
			*[[Thermodynamics]]

			==References==
			{{unreferenced\|date=March 2013}}

			[[Category:Calorimetry]]
			[[Category:Thermochemistry]]
			[[Category:Thermodynamics]]

2.125.4.11 at 12:05, 15 September 2011

2011-09-15T12:05:33Z

New page

Hi there. Let me begin by introducing the author, her name is Myrtle Cleary. For years I've been working as a payroll clerk. To gather cash is one of the issues I love most. California is exactly where her house is but she requirements to transfer simply because of her family.<br><br>Feel free to surf to my page ... [http://javly.com/?p=56362 http://javly.com/?p=56362]

Planck postulate - Revision history

en>Chjoaygame: virtual oscillators

2.125.4.11 at 12:05, 15 September 2011