Critical angle (optics) the angle of incidence above which total internal reflection occurs
Critical angle of attack, in aerodynamics; the angle of attack which produces the maximum lift coefficient
Critical angle of repose, in engineering; the steepest angle of descent of a slope when the material is on the verge of sliding
Critical Temperature
Gases can be converted to liquids by compressing the gas at a suitable temperature.
Gases become more difficult to liquefy as the temperature increases because the kinetic energies of the particles that make up the gas also increase.
The critical temperature of a substance is the temperature at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied.
Every substance has a critical temperature. Some examples are shown below.
substance critical temperature (oC)
NH3 132
O2 -119
Critical Pressure
The critical pressure of a substance is the pressure required to liquefy a gas at its critical temperature. Some examples are shown below.
The temperature above which a gas cannot be liquefied, regardless of the pressure applied.
The temperature at which a material becomes a superconductor.
Critical Angle:
The smallest angle of incidence at which a light ray passing from one medium to another less refractive medium can be totally reflected from the boundary between the two.
Critical Pressure:
The least applied pressure required at the critical temperature to liquefy a gas.
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Critical angle (optics) the angle of incidence above which total internal reflection occurs
Critical angle of attack, in aerodynamics; the angle of attack which produces the maximum lift coefficient
Critical angle of repose, in engineering; the steepest angle of descent of a slope when the material is on the verge of sliding
Critical Temperature
Gases can be converted to liquids by compressing the gas at a suitable temperature.
Gases become more difficult to liquefy as the temperature increases because the kinetic energies of the particles that make up the gas also increase.
The critical temperature of a substance is the temperature at and above which vapor of the substance cannot be liquefied, no matter how much pressure is applied.
Every substance has a critical temperature. Some examples are shown below.
substance critical temperature (oC)
NH3 132
O2 -119
Critical Pressure
The critical pressure of a substance is the pressure required to liquefy a gas at its critical temperature. Some examples are shown below.
substance critical pressure (atm)
NH3 111.5
O2 49.7
Define Critical Temperature
Critical Temperature:
The temperature above which a gas cannot be liquefied, regardless of the pressure applied.
The temperature at which a material becomes a superconductor.
Critical Angle:
The smallest angle of incidence at which a light ray passing from one medium to another less refractive medium can be totally reflected from the boundary between the two.
Critical Pressure:
The least applied pressure required at the critical temperature to liquefy a gas.
Define Liquefy