Question

which symbol can be used to indicate the pressure at which a chemical reaction is carried out?
o $xrightarrow{25^{circ}c}$
o $xrightarrow{\triangle}$
o $xrightarrow{2 atm}$
o $xrightarrow{pt}$

Explanation:

• $25^{\circ}C$ indicates temperature.
• $\triangle$ indicates heat is applied.
• $2\ atm$ is a unit of pressure (atmosphere), used to show pressure condition of a reaction.
• $Pt$ is the symbol for platinum, often used as a catalyst.

Answer:

C. 2 atm