Ideal Gas Law Calculator
Kuchotsa PV = nRT kwa aliyense wosinthasintha, mu kusankha kwanu kwa kupweteka, kutalika ndi kutentha amodzi.
Zithunzizi zimasintha monga momwe mumalemba.
Zachidule
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.
Mafunso ofunsidwa nthawi zambiri
Kodi ndi chiyani lamulo labwino la gasi?
PV = nRT imagwirizana ndi kupweteka, kulemera, moles ndi kutentha kwa gasi yoyenera pogwiritsa ntchito mfundo yosasintha R = 8.314 J/(mol·K).
Kodi ndi ziti zoyenera?
M’madera onse a m’nyumba zonse ndi SI — pascals, cubic metres, moles ndi kelvin — ndi R = 8.314. M’malo amodzi a gasi pa 0 °C (273.15 K) ndi 1 atm amatenga pafupifupi 22.4 L (0.0224 m³).
N’chifukwa chiyani kutentha kuyenera kukhala m’ma kelvin?
PV = nRT imagwiritsa ntchito kutentha kokwanira, komwe 0 K ndi zero kokwanira. Celsius ndi Fahrenheit ali ndi zeros zosayenera, kotero ku plug in °C mwachindunji kumapatsa mafunso opanda pake. Kuwonjezera 273.15 ku °C kuti mutenge kelvin — calculator amachita izi mwamsanga.
Kodi ndi STP ndi molar kutalika?
Mtengo wa kutentha ndi kupweteka kwa mpweya ndi 0 °C ndi 1 atm, pamene mole imodzi ya gasi yoyenera imatenga pafupifupi 22.4 lita. "Volume ya mola" iyi ndi yothandiza kuyendera: ngati zotsatira zanu za mole imodzi m'malo mwa zinthuzi ndi zosiyana ndi 22.4 L, onetsetsaninso yunitsi.
Kodi kodi malamulo a gasi woyenera amawonongeka?
Ndi yoyenera kwambiri pa zofooka zokwanira ndi kutentha kwambiri kuposa kutentha kwa kutentha, koma imakula mosayenera pa zofooka zopitilira muyeso kapena kulumikizana, komwe kuchuluka kwa molekulu ndi kutchuka kwa zinthu.
Kodi kusintha wina variable amakhudza ena?
Pa molas fixed, kukana ndi kutalika ndi zokhudzana motsutsana (Boyle's malamulo), pamene kukana ndi kutentha kwa chilengedwe ndi zokhudzana mogwirizana (Charles's malamulo).Kutentha chidebe chosapanga dzimbiri ndi kukana kuwonjezeka mu gawo la kutentha Kelvin.
Kodi ndi chiyani chitsimikizo cha R ndiyenera kugwiritsa ntchito?
Kutengera ndi magulu. M'ma SI ndi 8.314 J/(mol·K); m'liwiro la liwiro ndi 0.08206 L·atm/(mol·K). Izi calculator ntchito m'ma SI mwamkati ndi R = 8.314, kotero inu mukhoza kulowa iliyonse magulu ndi izo kugwirizana iwo.
API — kugwiritsa ntchito izi calculator kuchokera code
Kuti mudziwe zambiri, pitani ku www.json.org/json.html. Kuti mudziwe zambiri, pitani ku www.json.org/json.html. Chomweko chilichonse chimene mumasiya chimagwiritsa ntchito mfundo yoyamba yomweyi yomwe tsambali limagwiritsa ntchito; mfundo yosadziwika ndi 400, siyiyenera kukhala zero yosadziwika. Onani zonse API docs →
Chithunzi
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);Zimenezi ndi zowerengera zokhudzana ndi malangizo amtundu uliwonse, si zokhudzana ndi ndalama, zamoyo kapena zokhudzana ndi ndalama.