Àwọn Àtòjọ-ẹ̀yàn

Ṣàfikún PV = nRT fún àwọn fáìlì àwọn

Àwọn àwọn ààyè-iṣẹ́

Ìjádé

Àwọn ìtàn

Àwọn ìpéwọ̀n

Àwọn Ìgúnrégé

mol

Àwọn ìṣàmúlò-ètò

Àwọn ààtò ìpéwọ̀n

Ìjádé —

Àwọn ìpéwọ̀n —

Àwọn Ìgúnrégé —

Àwọn ìṣàmúlò-ètò —

Àwọn Àtòjọ-ẹ̀yàn àwọn ìṣàmúlò-ètò

Ńlà àwọn àwọn ààtò àtòjọ-ẹ̀yàn yìí?

Àkóónú ìṣàmúlò-ètò yìí

The ideal gas law ties together the four state variables of a gas in one equation, PV = nRT: pressure times volume equals the number of moles times the gas constant times the absolute temperature. The constant R = 8.314462618 J/(mol·K) in SI units. Rearranged, you can solve for any variable — P = nRT/V, V = nRT/P, n = PV/RT or T = PV/nR — and this calculator does exactly that, converting pressure (Pa, kPa, bar, atm, mmHg, psi), volume (m³, L, mL, cm³) and temperature (K, °C, °F) internally so you can work in whatever units you have.

The classic worked example is one mole of gas at standard temperature and pressure: at 0 °C (273.15 K) and 1 atm, V = nRT/P = 1 × 8.314 × 273.15 / 101,325 ≈ 0.0224 m³, or the familiar 22.4 litres per mole. Heat that gas to 300 K at constant pressure and the volume rises in proportion, since V ∝ T. A crucial detail: temperature must be absolute — always convert °C or °F to kelvin (add 273.15 to °C) before the math, which the calculator handles for you.

The law is called "ideal" because it assumes gas molecules have no volume and do not attract one another. Real gases follow it closely at ordinary pressures and temperatures well above their boiling point, and it is the everyday tool for scuba and diving gas calculations, chemistry stoichiometry of gases, HVAC and pneumatics, and estimating how a balloon or tyre responds to heating and cooling. It becomes less accurate at very high pressure or near condensation, where equations like van der Waals do better.

Àwọn Àtòjọ-ẹ̀yàn

Kini ìṣẹ̀dà gaasì tí a fẹ́?

PV = nRT ǹpárá ìṣàmúlò-ètò, ìwọ̀n, àwọn mólè atí ìgbà tí gáà ìṣàmúlò-ètò kan láti inú àwọn àwọn ìṣàmúlò-ètò R = 8.314 J/(mol·K). Àwọn àwọn

Àwọn àwọn ìrísí-lẹ́tà ìṣàfarawé

Nínú gbogbo àwọn ohun ní SI — pascals, cubic metres, moles atí kelvin — pẹlú R = 8.314. Mólè kan tí a fi gáàsì lò ní 0 °C (273.15 K) àti atm 1 tí wọ́ inú 22.4 L (0.0224 m³). Fi àwọn àwọn ìtàn wò nípa; àwọn káàntírà yí padà sípò fún ọ.

Kini idi tí àwọn ìṣàmúlò-ètò láti jẹ́ nínú kelvin?

PV = nRT ló àwọn ààyè àìdájú àwọn ààyè àìdájú, níbí ti 0 K jẹ́ àìdájú. Celsius àti Fahrenheit ní àwọn ààyè àìdájú, láti jẹ́ pé ìpàpọ̀ nínú °C láti fi àwọn ààyè àìdájú pamọ́. Fi 273. 15 sí °C láti gba kelvin — àwọn káàdìí ìṣàmúlò-ètò náà ló ǹkan.

Kini STP ati àwọn ìparísàlẹ̀ molara?

Àwọn ààyè-iṣẹ́ àti àwọn ìṣàmúlò-ètò ìpéwọ̀n jẹ́ 0 °C ati 1 atm, nígbà tí mólè kan tí a fi pamọ́ nínú gaasì ìṣàmúlò-ètò kan tí wọ́n gba 22.4 lítà. "Ìrọ̀ọ̀kan mólè" yìí ní ayẹwo tí a lè lò: tí àwọn ààtò rẹ̀ fun mólè kan nínú àwọn ààyè-iṣẹ́ yìí tí kù ju 22.4 L lọ, wòyé àwọn àwọn òkè.

Nibo ni ofin ti gaasi ti o dara julọ ti dapọ?

Ó jẹ́ ìṣàfarawé nínú àwọn ìpàsẹ̀ àti àwọn ìgbára-àti-ìgbára tí a fi pamọ́ nínú àwọn ààyè-iṣẹ́, àwọn ìṣàfarawé nínú àwọn ìpàsẹ̀ giga àti àwọn ìṣàfarawé nínú àwọn ààyè-iṣẹ́.

Bawo ni ìyipada àwọn váriable kan se lórí àwọn mìíràn?

Nínú àwọn mólè tí a fi pàtó, ìpésẹ̀ àti ìwọ̀n ní ìdáràn (ìṣẹ́ Boyle), nígbà tí ìpésẹ̀ àti àwọn ìpelé tí a fi hàn nípárá (ìṣẹ́ Charles). Fi àwọn ààyè tí a tí ìpàdé pamọ́ sinu àwọn ààyè tí a tí ìpàdé pamọ́.

Àwọn fálù wo nínú R ní mò fẹ́ lò?

O dájú àwọn ààtò. Nínú SI o jẹ́ 8.314 J/(mol·K); nínú líta-àtòjọ-ìjáde o jẹ́ 0.08206 L·atm/(mol·K). Àwọn iṣẹ́ tí a ṣe nínú SI ní inú pẹlu R = 8.314, láti jẹ́ pé o lè fi àwọn àtòjọ-ẹ̀yàn wọ̀n pamọ́.

API — ló àwọn ìṣàmúlò-ètò yìí láti inú ìṣàmúlò-ètò

Fi àwọn ìṣàmúlò-ètò yìí kọ̀ǹpútà yìí láti jẹ́ ààyè-iṣẹ́ JSON tí a tí fi pamọ́ - kò ní bọ́tìnì kan tí a fẹ́. Fi àwọn fálù ààyè-iṣẹ́ sílẹ̀ sí bí àwọn àwọn ìṣàmúlò-ètò àti JSON. Anything you omit uses the same default this page is pre-filled with; an unknown parameter is a 400, never a silent zero. Ka àwọn àkọlé API kíkún →

Àwọn Ààyè Ìjánu-ìṣàmúlò-ètò

GET https://calculator.free/api/v1/ideal-gas-law/

curl

curl "https://calculator.free/api/v1/ideal-gas-law/?solve=volume&pressure=1&pressure_unit=atm&volume=22.4&volume_unit=l&moles=1&temperature=273.15&temperature_unit=k"

JavaScript `fetch()`

const r = await fetch(
  "https://calculator.free/api/v1/ideal-gas-law/?" + new URLSearchParams({
    "solve": "volume",
    "pressure": "1",
    "pressure_unit": "atm",
    "volume": "22.4",
    "volume_unit": "l",
    "moles": "1",
    "temperature": "273.15",
    "temperature_unit": "k"
  }));
const data = await r.json();
console.log(data.results);

Results are estimates for general guidance only, not financial, medical or tax advice.

Àkóónú ìṣàmúlò-ètò yìí

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Àwọn Ààyè Ìjánu-ìṣàmúlò-ètò

curl

JavaScript fetch()

JavaScript `fetch()`