Respuesta :
CH₃COOH has a lower vapor pressure at a given temperature.
What is vapor pressure?
- Vapor pressure (or vapor pressure in English-speaking countries other than the United States; see spelling differences) is defined as the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases (solid or liquid) in a closed system at a given temperature.
- The equilibrium vapor pressure indicates the rate of evaporation of a liquid.
- It refers to the proclivity of particles to escape from a liquid (or a solid).
- A volatile substance is one that has a high vapor pressure at normal temperatures.
- The pressure exerted by vapor above a liquid surface is referred to as vapor pressure.
To find which has a lower vapor pressure, CH₃COOH or (CH₃)₂C=O:
- CH₃COOH is a carboxylic acid with three hydrogen bonding sites (carbonyl oxygen, oxygen of -OH, and hydrogen of -OH), whereas (CH₃)₂C=O is a ketone with only one hydrogen bonding site.
- It means that CH₃COOH molecules will have a harder time escaping to the vapor phase, resulting in lower vapor pressure.
Therefore, CH₃COOH has a lower vapor pressure at a given temperature.
Know more about vapor pressure here:
brainly.com/question/4463307
#SPJ4
