DuckieDai Nernst Equation Python Program

← Back to Calculator Program Library

Independent compatibility resource: Hidden Word Scanner is independent and is not affiliated with or endorsed by Texas Instruments. TI product names describe compatibility only.

Action-count privacy: Successful downloads, preview starts, and preview completions increment same-origin aggregate counters. No entered values, source text, IP address, account, cookie, device identifier, or fingerprint is stored with these counts.

chemistry · MIT License

Overview

Calculate reaction or cell potential from E0, temperature, electron count, and reaction quotient using the general or 298 K Nernst form.

Usage

Inputs

Standard potential E0 in volts
Positive absolute temperature and positive integer electron count
Positive dimensionless reaction quotient Q

Outputs

Potential and logarithmic correction in volts
Conditional cell-voltage interpretation

Units: Potential is volts, temperature is kelvin, Q is dimensionless and activity-based, R is 8.314 J/(mol*K), and F is 96485 C/mol.

Assumptions and limitations

Assumptions

E0, Q, and n refer to the same balanced reaction and electron-transfer convention.
Concentrations or partial pressures approximate activities only when that course approximation is appropriate.

Constraints

T, n, and Q are positive; the 0.0592 V shortcut is fixed to approximately 298 K.

Known failures

A half-cell potential alone does not establish overall cell spontaneity without a complete reaction convention.
Using dimensional concentrations directly in Q or inconsistent reaction scaling changes the result.

Compatibility and review

Review status: Not calculator tested
Tested on: The owner reports personally testing the supplied archive programs on a calculator; exact model, OS, and Python App versions were not recorded
What happened: Owner reported interactive testing is disclosed, but the published bytes are not labeled independently calculator tested because the environment is unrecorded and Arrhenius received a narrow intake correction
Dependencies: math
Suggested calculator name: NERNS — you can give it another valid, unique name when you transfer it
Desktop test cases: Not available for this interactive-only source

This exact source auto-launches an interactive calculator session, so compatibility evidence comes from the recorded physical-device review rather than an importable desktop fixture.

Browser preview

Try the DuckieDai calculator screen

Follow the same opening, solve menu, prompts, validation, and result flow as the downloadable program.

Simulation boundary: This preview uses a reviewed browser adapter. It does not execute the downloaded Python and does not prove TI-Python or calculator compatibility.

JavaScript is required for the optional browser simulation. Source viewing and downloading remain available without it.

Exact reviewed bytes

Source code

Download .py

View source below, copy it when JavaScript is available, or download the exact .py bytes.

from math import log
def intro(n):
 print("+----------------------+");print("| "+n+" |");print("|   ___(o )> quack!    |");print("|   by DuckieDai       |");print("+----------------------+");input("ENTER to start: ")
def num(s):
 while 1:
  try:return float(input(s))
  except:print("Enter a number")
def pos(s):
 while 1:
  x=num(s)
  if x>0:return x
  print("Must be positive")
def pick():
 while 1:
  q=input("1 Any temp 2 298K: ")
  if q=="1" or q=="2":return q
  print("Choose 1 or 2")
intro("NERNST EQUATION")
q=pick();e0=num("E0 volts: ");n=pos("Electrons n: ");Q=pos("Q: ")
if q=="1":
 t=pos("Temp K: ");cor=8.314*t*log(Q)/(n*96485)
else:cor=.0592*log(Q,10)/n
e=e0-cor;print("E volts =",e);print("Correction =",cor)
if e>0:print("Spontaneous cell")
elif e<0:print("Nonspontaneous as written")
else:print("At equilibrium")
input("ENTER for guide: ");print("Q<1 raises E; Q>1 lowers E");print("DuckieDai: done!");input("ENTER to exit: ")

from math import log
def intro(n):
print("+----------------------+");print("| "+n+" |");print("| ___(o )> quack! |");print("| by DuckieDai |");print("+----------------------+");input("ENTER to start: ")
def num(s):
while 1:
try:return float(input(s))
except:print("Enter a number")
def pos(s):
while 1:
x=num(s)
if x>0:return x
print("Must be positive")
def pick():
while 1:
q=input("1 Any temp 2 298K: ")
if q=="1" or q=="2":return q
print("Choose 1 or 2")
intro("NERNST EQUATION")
q=pick();e0=num("E0 volts: ");n=pos("Electrons n: ");Q=pos("Q: ")
if q=="1":
t=pos("Temp K: ");cor=8.314*t*log(Q)/(n*96485)
else:cor=.0592*log(Q,10)/n
e=e0-cor;print("E volts =",e);print("Correction =",cor)
if e>0:print("Spontaneous cell")
elif e<0:print("Nonspontaneous as written")
else:print("At equilibrium")
input("ENTER for guide: ");print("Q<1 raises E; Q>1 lowers E");print("DuckieDai: done!");input("ENTER to exit: ")

Filename: nerns.py
Size: 944 bytes
SHA-256: 57028fdd4585b6c2ba7bab533ea95c8d990a15e5b7dac74eaf37cbdea5504d1b

Transfer and launch

Confirm that your calculator is the Python-capable model named above. This release has no verified calculator OS or Python App version; treat transfer and execution as unverified until independently tested.
Download the .py source above and verify its SHA-256 digest if your computer provides that option.
Use TI Connect CE to send the Python file to a compatible calculator. NERNS is a suggested name; you may choose another valid, unique calculator name.
Open the Python App, select the program, and check sample inputs before relying on other results.

Read the complete installation, launch, troubleshooting, and removal guide.

Availability does not mean a teacher, school, or exam permits this program. Follow the applicable rules.

Version history

1.0.0 — current version, published 2026-09-23. Download this reviewed version

Any source change requires a new immutable version and digest. Historical downloads remain available only while their review records remain valid.