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Wepụta PV = nRT maka ọbụla váríà, n'ụdị ịhọrọ nke ịdị n'ime, ọ̀m̀pụ̀ ná okpomọkụ.
Nhọrọ ndị ahụ ga-akpụzi mgbe ị na-etipụta.
N'ihe banyere calculator a
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.
Ajụjụ ndị a na-ajụkarị
Gịnị bụ iwu gas dị mma?
PV = nRT na-ejikọta nrụgide, ọmịiko, moles na okpomọkụ nke ihenhọrọ gas site na R = 8.314 J/(mol·K). Kwụsị ya ka echepụta maka ọbụla n'ime vaịntaịra.
Gịnị bụ yunit ndị ahụ ziri ezi?
N'ime ihe niile bụ SI - pascals, cubic metres, moles na kelvin - na R = 8.314. Mole nke gas na 0 °C (273.15 K) na 1 atm na-echekwa ihe dịka 22.4 L (0.0224 m³). Tinye ịdị n'otu ọbụla ịchọrọ; kalkulata na-atụgharị maka gị.
Gịnị mere okpomọkụ ji adị na kelvin?
PV = nRT na-eji okpomọkụ zuru ezu, ebe 0 K bụ zero zuru ezu. Celsius na Fahrenheit nwere zeros n'ozuzu ha, ya mere ịpịnye na °C n'ụzọ ziri ezi na-enye nzaghachi na-ezighị ezi. Tinye 273.15 na °C ka ị nweta kelvin - kalkulata na-eme nke a n'ozuzu ya.
Gịnị bụ STP na molar volụmu?
Nhazi okpomọkụ na mgbatị bụ 0 °C na 1 atm, ebe otu mole nke gas dị mma na-echekwa ihe dịka 22.4 lita. "Molar volume" a bụ nyocha dị mfe: ọ bụrụ na nsonaazụ gị maka mole n'ebe ndị ahụ dị nso na 22.4 L, nyochaa yunit ahụ ọzọ.
Olee mgbe iwu gas dị mma na-akwụsị?
Ọ na-egosipụta nke ọma na nrụgide na okpomọkụ dị ala n'elu ngwụcha nkụ, kama ọ na-egosipụta nke ọma na nrụgide dị elu ma ọ bụ n'ebe dị nso na nrụgide, ebe ọ bụ na ọbụna molekụl ọmịiko na nrụgide dị mkpa. Real-gas equations dị ka van der Waals na-ejikwa ha.
Olee otú ịgbanwe vaịnịra otu ga-emetụta ndị ọzọ?
N'ime moles, ịdị arọ na ọmịiko na-emetụtakwa (Boyle's law), ebe ọ bụ na ọmịiko na okpomọkụ dị n'ime na-emetụtakwa (Charles's law). Kwụsị ihe na-ekpuchi ya na-ekpuchi ya na ịdị arọ na-amụba n'ụzọ dị ka okpomọkụ Kelvin.
Kedu uru nke R m ga-eji?
Ọ na-adabere na yunit. N'ime SI ọ bụ 8.314 J/(mol·K); n'ime lita-atmospheres ọ bụ 0.08206 L·atm/(mol·K). Kalọnaịlụ a na-arụ ọrụ n'ime SI n'ime ya na R = 8.314, yabụ ị nwere ike ịbanye ọbụna yunit ọbụla na ọ na-ejikọta ha.
API — jiri kaadị a site na kóòdù
Kpọọ kalkulata a dịka ebe ngwụcha JSON n'efu - enweghị kii achọrọ. Ziga valiu ebe ahụ n'okpuru dịka paramita ajụjụ mọọbụ JSON. Ihe ọbụla ị na-ewepụ na-eji dìfọ́ọ̀ltụ̀ nke a na-edebe ihuakwụkwọ a na ya; parameter a na-amaghị bụ 400, ọ dịghị sẽọ̀rọ̀. Gụọ ngwe ndị ahụ niile →
Ebemkpofuozi
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);Ihe a na-ahụta bụ n'ihi nlekọta n'ozuzu ya, ọ bụghị nlekọta ego, ọgwụ ma ọ bụ nlekọta ego.