Dilated pupils: Introduction. Dilated pupils occur when the pupils of the eyes increase in size. The pupils are commonly known as the round, black centers of the eyes. Dilation of the pupils is a normal response to low levels of light or darkness.This response helps a person to see better in situations of low light.ilated pupils: Introduction. Dilated pupils occur when the pupils of the eyes increase in size. The pupils are commonly known as the round, black centers of the eyes. Dilation of the pupils is a normal response to low levels of light or darkness.
Eric Muller â Exploratorium Teacher Institute 2005 A Mole of Gas 22.4 liters of gas!22.4 liters of gas is the volume of 1 mole of gas at STP(Standard Temperature and Pressure = 0 degrees C at 1ATM).Hereâs a couple of ways to see what 6.02x10 23 of gas molecules lookslike.ric Muller â Exploratorium Teacher Institute 2005 A Mole of Gas 22.4 liters of gas!22.4 liters of gas is the volume of 1 mole of gas at STP(Standard Temperature and Pressure = 0 degrees C at 1ATM).
A gas is a substance which. ( 1 a) at 50 Â°C (122 Â°F) has a vapor pressure greater than 300 kPa or. ( 2 b) is completely gaseous at 20 Â°C (68 Â°F) at a standard pressure of 101.3 kPa. 3  Gases assigned to one of three divisions.  division 2.1 Flammable 1  gas. division 2.2 Non flammable, Non-toxic 2  gas. division 2.3 Toxic  gas.