Name conditions at STP?

Pressure (in atm, kPa, and mmHg)

Volume (in Liters)

Number of particles

Thank you!

2 Answers

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  • Dr W
    Lv 7
    6 years ago
    Favorite Answer

    if you're taking a chemistry class in the US, STP (Standard Temperature and Pressure) usually means

    .. T = 273.15K = 0°C

    .. P = 1atm = 101.325kPa = 760mmHg

    the other variables

    .. # of particles

    .. Volume

    are NOT defined in "STP"

    *******

    however... all that said.. this link

    http://en.wikipedia.org/wiki/Standard_temperature_...

    shows the current IUPAC and NIST definitions of STP... and some others as well

    note that IUPAC has changed definitions, while NIST has not

    *******

    to the other guy who doesn't know what he's talking about

    NTP.. normal temperature and pressure... refers to

    .. T = 293.15K = 20°C

    .. P = 1atm = 760mmHg = 101.325kPa

    note the difference...

    .. T is not the same.. it's closer to "room temperature"

    .. P is the NIST definition.. not the IUPAC definition

  • 6 years ago

    STP is

    Standard

    Temperature

    and Pressure.

    It is also

    referred as

    NTP or Normal

    Temperature

    and Pressure.

    Conditions:

    Temperature

    = 0 degrees

    Celcius or 273

    Kelvin

    Pressure = 1

    Atmospheric

    Pressure or

    760 torr

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