Ideal Gas Law Calculator 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

t4-123

Effect

Computation or source lookup only

Input and validation requirements

The specification does not state validation for absolute-zero inputs, zero-mole division traps, unit-system branch selection, or Celsius-versus-Kelvin temperature interpretation. A plain-arithmetic implementation can return undefined/NaN or materially wrong results instead of rejecting or disambiguating these cases.

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": {
    "n": 2,
    "n_unit": "mol",
    "T": 300,
    "T_unit": "K",
    "V": 10,
    "V_unit": "L",
    "R": 0.08206,
    "R_unit": "L·atm/(mol·K)"
  },
  "expected_outputs": {
    "P": 4.9236,
    "P_unit": "atm"
  },
  "working": "P = nRT/V = (2 mol × 0.08206 L·atm/(mol·K) × 300 K) / 10 L = 49.236 L·atm / 10 L = 4.9236 atm."
}

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-tranche4/tranche4-results.json