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Beschrijving
The “Chemical Kinetics” is an ultimate tool for solving all kind of chemical kinetics problems. It deals with time dependent quantitative analysis of chemical reactions. Specifically, this application solves chemical reaction rate equations and provides graphical representation of reagent and product concentrations vs time. Additionally, app calculates half-life times and equilibrium constants, where it is appropriate.
Theoretical Background:
For a general chemical reaction:
aA + bB => cC + dD,
the reaction rate is defined by:
rate=k * A^x * B^y
where k – is a rate coefficient and sum of powers x and y determines the reaction order. Importantly, actual powers x and y may differ from reaction coefficients a and b, due to overall reaction mechanism complexity.
The application features:
· User is provided with list of basic mono-step unidirectional and equilibrium reactions, where reaction coefficients are actually represent powers and therefore define reaction order:
2A => B, rate = k[A]^2
A+B = C+D, rate = k1[A] [B] - k2[C] [D]
· k1 is a rate coefficient of forward reaction in equilibrium process or rate coefficient for first step in multistep process. Similarly, k2, when available, is a rate coefficient of backward reaction in equilibrium process or rate coefficient for second step in multistep process.
· To start plotting the reaction data initially or after updating the concentration or coefficient fields, user is requested to tap Run button. Run button is greyed out immediately after successful calculation.
· Complete reaction information is provided on top of the plot: concentrations at certain time point (defined by user or provided automatically), optionally equilibrium constant value and half-life time.
· When time field is empty, the app automatically determines the time range. To redefine reaction time limit and find out component concentrations at the altrnative time point, user may update the time field.
· Significant attention should be paid to units of rate coefficients. App automatically changes the set of available units as per order of reaction.
Units acronyms: d - days, h - hours, a - atmosphere, s - seconds, min - minutes, y - years, M -molars, Pa - pascals.
· The basic conversions are as follows:
M-1·s-1 = (1e-3) mM-1·s-1 = (60e-3) mM-1·min-1 = (3600) M-1·h-1
1 atm=101325 Pa
Wat is nieuw in versie 3.7
Compatibility update.
Verkoper
Naam
Roman Volinsky
Informatie
Ontwikkelaar
Categorieën
Versie
3.7
Grootte
2,4 MB
Game Center
Nee
VPP Device Licensing
Ja
Beoordeling
Beoordeling: 4+
Compatibiliteit
iOS 17.0 of nieuwer
Apparaten
iPhone 5s, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus, iPhone SE, iPhone 7, iPhone 7 Plus, iPhone 8, iPhone 8 Plus, iPhone X, iPhone XR, iPhone XS, iPhone XS Max, iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max, iPhone SE (2e generatie), iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 mini, iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 mini, iPhone SE (3e generatie), iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max, iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max, iPhone 16, iPhone 16 Plus, iPhone 16 Pro, iPhone 16 Pro Max, iPhone 16e, iPhone 17, iPhone 17 Pro, iPhone 17 Pro Max, iPhone Air, iPhone 17e, iPad (5e generatie) Wi-Fi, iPad (5e generatie) Wi-Fi + Cellular, iPad (6e generatie) Wi-Fi, iPad (6e generatie) Wi-Fi + Cellular, iPad Pro, iPad Pro (Cellular), iPad Pro (9,7 inch), iPad Pro (9,7 inch) (Cellular), iPad Pro 12,9-inch (2e generatie), iPad Pro 12,9-inch (2e generatie) Wi-Fi + Cellular, iPad Pro (10,5-inch), iPad Pro (10,5-inch) Wi-Fi + Cellular, iPad Pro (11-inch), iPad Pro (11-inch) Wi-Fi + Cellular, iPad Pro 12,9-inch (3e generatie), iPad Pro 12,9-inch (3e generatie) Wi-Fi + Cellular, iPad Air, iPad Air (Cellular), iPad Air 2, iPad Air 2 (Cellular), iPad Air (derde generatie), iPad Air (derde generatie) Wi-Fi + Cellular, iPad mini Retina, iPad mini Retina (Cellular), iPad mini 3, iPad mini 3 (Cellular), iPad mini 4, iPad mini 4 (Cellular), iPad mini (5e generatie), iPad mini (5e generatie) Wi-Fi + Cellular, iPad (7e generatie) Wi-Fi + Cellular, iPad Pro 11-inch (2e generatie), iPad Pro 11-inch (2e generatie) Wi-Fi + Cellular, iPad Pro 12,9-inch (4e generatie), iPad Pro 12,9-inch (4e generatie) Wi-Fi + Cellular, iPad Air (4e generatie) (Wi-Fi), iPad Air (4e generatie) (Wi-Fi + Cellular), iPad (8e generatie) Wi-Fi, iPad (8e generatie) Wi-Fi + Cellular, iPad Pro 11-inch (3e generatie), iPad Pro 11-inch (3e generatie) Wi-Fi + Cellular, iPad Pro 12,9-inch (5e generatie), iPad Pro 12,9-inch (5e generatie) Wi-Fi + Cellular, iPad (9e generatie), iPad (9e generatie) Wi-Fi + Cellular, iPad mini (6e generatie), iPad mini (6e generatie) Wi-Fi + Cellular, iPad Air (5e generatie), iPad Air (5e generatie) Wi-Fi + Cellular, iPad Pro 11-inch (4e generatie), iPad Pro 11-inch (4e generatie) Wi-Fi + Cellular, iPad Pro 12,9-inch (6e generatie), iPad Pro 12,9-inch (6e generatie) Wi-Fi + Cellular, iPad (10e generatie), iPad (10e generatie) Wi-Fi + Cellular, iPad Air 11-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi, iPad Air 13-inch (M2) Wi-Fi + Cellular, iPad Pro 11-inch (M4) Wi-Fi, iPad Pro 11-inch (M4) Wi-Fi + Cellular, iPad Pro 13-inch (M4) Wi-Fi, iPad Pro 13-inch (M4) Wi-Fi + Cellular, iPad mini (A17 Pro) Wi-Fi, iPad mini (A17 Pro) Wi-Fi + Cellular, iPad (A16) Wi-Fi, iPad (A16) Wi-Fi + Cellular, iPad Air 11-inch (M3) Wi-Fi, iPad Air 11-inch (M3) Wi-Fi + Cellular, iPad Air 13-inch (M3) Wi-Fi, iPad Air 13-inch (M3) Wi-Fi + Cellular, iPad Pro 11-inch (M5) Wi-Fi, iPad Pro 11-inch (M5) Wi-Fi + Cellular, iPad Pro 13-inch (M5) Wi-Fi, iPad Pro 13-inch (M5) Wi-Fi + Cellular, iPad Air11M4, iPad Air11M4Cellular, iPad Air13M4, iPad Air13M4Cellular, iPod touch (zesde generatie), iPod touch (7e generatie)
Talen
Engels
App Store: Klantbeoordeling
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