Makalu

Physics: Bayanai game da gas laws

  • A yau zamu yi karatunmu ne na fannin ilmin kimiyyar lissafi akan wani maudu'i mai matukar mahimmanci wato gas law. Shi wannan gas law ana siffanta shine da abubuwa guda uku, gasu kamar haka: volume, da temperature, da kuma pressure.

    Kafin mu fara bayani akan gas law din zamu san abubuwan da suka hadu suka zama gas, pressure din gas shine force wanda gas ke hada gas ya takura shi wuri daya ya zama yana tafiya a perpendicular per unit. Idan muka koma bayani ta fannin lissafi kuma zai zama kamar haka:

    Pressure = Force / Area = mass × acceleration due to gravity / Area

    = density × volume × g / Area

    = density × Area × height × g / Area

    A kula: Yana da kyau mu san wannan: (density = mass / volume) (volume = area × height)

    Pressure = density × height × g

    P = phg (an sanshi da pressure fomula).

    Ana auna pressure da

    N/M2 1.013 × 105N/m2 = 1 atmosphere = 1.013 × 105 Pa = 760mmHg

    A dubaPhysics: Yadda ake lissafin screw

    Gas pressure measurement

    Ana amfani da manometer wanda yana iya zama manometer na ruwa ko na mercury domin auna pressure gas kamar yadda kuka gani a fig 1.0

    Fig 1.0 

    The gas pressure (p) at X = pressure in the liquid at Z

    = Atmospheric pressure + pressure due to water column YZ

    Gas pressure, p = = P + h

    Duba fig 1.1

     

    Fig 1.1

    Atmospheric pressure (P) acting at N = pressure in the liquid at M

    = pressure of gas(p) + pressure due to mercury column LM

    P = p + h

    Yanzu zai zama, pressure of gas, p = P – h

    KarantaSnell's law: Lissafin refraction

    Yanzu zamu dauki misali guda daya wanda ya nuna mana yadda ake lissafin pressure kafin mu fara bayani akan gas laws wanda suma kowannensu zamu kawo shi tare da lissafinsa.

    Misalin lissafin pressure

     

    Fig 1.2

    The water manometer shown above is measuring the pressure of the gas supply. If the specific gravity of mercury is 13.6 and the atmospheric pressure is 70cm of mercury , what is the total pressure of the gas supply in cm of water. (JAMB 1982) A. 67cm B. 73 cm C. 949cm D. 952cm E.955cm

    Amsar bambaya:

    Yana da kyau mu sani cewa specific gravity is the same as relative density.

    Relative density = density of substance (Hg) / density of water.

    Therefore, density of mercury = Relative density of Hg × density water

    = 13.6 × 1000

    = 13600kgm-3

    The equivalent of the atmospheric pressure (70cmHg) in cm of water is calculated by equating pressure formula for water and mercury as follows:

    (phg) water = (phg)mercury

    Yanzu zai zama

    Density of water × height × g = density of Hg × height of Hg × g

    1000 × h × 10 = 13600 × 70 × 10

    h = 13600 × 70 × 10 / 1000 × 10 = 952000 / 1000 = 952cm

    The atmospheric pressure, P = 952cm of water

    Total gas pressure, = Atmospheric pressure (P) + pressure due to 3cm of water

    = 952 + 3

    = 955cm of water

    Wadannan sune kadan daga misalin lissafin pressure, a makalata da zata gabata zankawo muku ire-iren Gas law da lissafinsu

    Sannan a duba wannan a TuranceGas law

    Hakkin mallakar hoto:chem.fsu.edu

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