standard state

[Sienna Webby 2G]

How do you know when a substance is in its standard state ?

[506026459]

Usually standard state is used for gases, so the standard conditions for this state is 1atm and 273 K.

[Nala Son 3B]

Hi!

The standard state for a gas is if it is at 1atm.
The standard state for a solute is if the concentration is at 1M.
Pure solids and liquids are already at their standards states.

[Suraj Kulkarni 2B]

For gases, the standard state is 1 atm and 273K, and for a solute it is at 1M concentration.

[Zain Syed 1E]

Standard states are when the substance is in its most stable form. For carbon: C(s) which is graphite, Hydrogen: H2(g), Oxygen: O2(g), Chlorine: Cl2(g), Nitrogen N2(g), Bromine: Br2(l) liquid at room temp, Fluorine F2(g), and Iodine: I2(s) solid at room temp. Standard states for gases are 1 atm, for solution is 1 M at 1 atm, for pure liquid or solids it is their pure liquid or solid states, and for elements, it is the most stable phase at 1 am and 25 degrees celsius.

[yvette nouneh]

Only a specified standard state is given for substances in the gas phase. In this state, gases are at a pressure of 1 atm, at a temperature of 273K and the standard state of the concentration of a solute is 1M.