Question

at 65 degrees celsius, which compound has a vapor pressure of 58 kilopascals? 1. ethanoic acid2. ethanol 3. propanone 4. water

Answer 1

Answer: 2. Ethanol

Step-by-step explanation:

• The attached figure shows the relation between vapor pressure (KPa) and temperature (celsius) for the ethanoic aci, propanone, ethanol and water.

• Make lines by the values given of the vapor pressure (58.0 KPa) and temperature (65.0 celsius).

• You will find that the compound is ethanol

Answer 2

The vapour pressure of a substance actually differs relative to the temperature. So to know which compound has the vapour pressure of 58 kilopascals at 65 degrees Celsius, we refer to standard tables of temperature vs Vapour pressure.

From the tables or graph, the answer here is:

2. ethanol