standard state

[Jenna 1G]

Hi! can someone describe to me standard state and how to know when a substance is in it's standard state.

[MattDixon3A]

Essentially, standard state is the reference point for a substance in order to formulate said substance's properties under different conditions. To determine if a substance is in its standard state, look to see if its properties satisfies certain conditions, such as being (commonly) 25 degrees Celsius, being pure (if involving liquids/solids), all gases being at 1 atm, solutions having a concentration of 1M at 1 atm, and if the elements are in their most stable phase. I hope this helps clarify a bit!

[Alexandra Gill]

Standard state is usually at 25 celsius, always gases at 1 atm, pure substance for solids and liquids, solutions at 1M, and elements in their most stable phase.

[LukeYing_3H]

A standard state is basically a reference point for a substance in order to define how the substance is different under different condition. Standard states are common conditions such as 25 degrees celsius temperature

[ThomasL1L]

The usually most commonly referenced points of standard state is 25 degrees Celcius, all gases at 1 atm, and all elements at 1M.

[Carlie_Dorostkar_1A]

I think what you are asking is when to know whether the standard state for a compound is a gas, solid, or liquid. I believe this is a matter of memorizing them.

[305723807]

standard state is the reference point