Ideal Gas Law Solver implementation

Binding contract

This record describes what an executable surface must bind and validate. It does not claim that a public calculator, package, or production route is deployed.

Record owner

Guth Instruments

Lifecycle

verified-clean

Evidence ID

live-source boundary

Effect

Computation or source lookup only

Input and validation requirements

The solver should reject T=0 K as outside the ideal-gas validity range and reject n=0 when solving T because the denominator nR vanishes. A convention error also produces a severe numerical error when Celsius is treated as Kelvin.

Required corrections

No binding erratum is attached to this unique-name record. Implementers must still preserve the declared units, domain, and failure behavior.

Inspectable interface fixture

The sample below is evidence for interface and validation tests, not a production implementation.

{
  "inputs": {
    "solve_for": "n",
    "P": 100000,
    "P_unit": "Pa",
    "V": 0.024942,
    "V_unit": "m^3",
    "T": 300,
    "T_unit": "K",
    "R": 8.314,
    "R_unit": "J/(mol·K)"
  },
  "expected_outputs": {
    "n": 1,
    "n_unit": "mol"
  },
  "working": "n=PV/(RT)=(100000 Pa×0.024942 m^3)/(8.314 J/(mol·K)×300 K)=2494.2/2494.2=1 mol."
}

Other records

Sources and evidence

These pointers bind the page to evidence. They do not grant authority or collapse verification into deployment.

• VERIFIED_LEDGER.json
• evidence-tranche2/batch10-output.jsonl