E-CodeRate laws: zero, first and second order — a TI-84 Plus CE program
KINETIC is a TI-BASIC program for the TI-84 Plus CE. Integrated rate law for a zero-, first- or second-order reaction: concentration at time t, half-life, the time to fall to a target concentration, the rate at t, and which plot is linear.
What it asks for and what it shows
It asks for 4 values at its prompts, after you pick option 2 from its menu. In the example below it shows [A]T M, T1/2, T(C), RATE, LN[A] VS T LIN.
Example run
One of its oracle test cases: “first order N2O5, k .0231/min”. The inputs are typed in order, and the results are the values the case expects on the screen.
| Step | Value |
|---|---|
| You enter | |
| Menu | option 2 |
| Input 1 | 0.0231 |
| Input 2 | 0.5 |
| Input 3 | 30 |
| Input 4 | 0.1 |
| The screen shows | |
[A]T M= | 0.2500367978 |
T1/2= | 30.00637145 |
T(C)= | 69.6726369 |
RATE= | 0.00577585003 |
| Text | LN[A] VS T LIN |
How it's checked
7 test cases, each checked against an independent method. Replayed key by key on a virtual TI-84 Plus CE, they make 45 checks.
How E-Code checks every program
Run it or put it on your calculator
- Open the library in the TI-84 Plus CE calculator and pick “Rate laws: zero, first and second order” (KINETIC).
- Put it on your own calculator with a computer and a USB cable, or type it in by hand.
Related programs
- Weak acid equilibrium pH
- Ideal gas law solver
- Limiting reagent and theoretical yield
- ICE table: equilibrium concentrations
- Weak-acid titration and buffer pH
All TI-84 Plus CE chemistry programs · All TI-84 Plus CE programs