Question

Water is stored in a tank at 75°C and 2.5 atm. Use the Antoine equation calculate the boiling temperature of the water (F). Report three significant figures

Answer 1

Step-by-step explanation:

Antoine equation is as follows.

`log_(10) P = A - (B)/(C + T)`

It water is at
`75^(o)C`, then values of constants A, B, and C will be as follows.

A = 8.07131, B = 1730.63, C = 233.426

When pressure, P = 2.5 atm then putting these given values into the above equation as follows.

`log_(10) P = A - (B)/(C + T)`

`log_(10) (2.5 * 101.325 * 10^(3)) = (8.07131 - (1730.63)/(233.426 + T))`

5.40365 =
`8.07131 - (1730.63)/(233.4 + T)`

T =
`415.33^(o)C`

Converting the temperature into Fahrenheit as follows.

`T_(F)` =
`(9)/(5) * 415.33 + 32`

=
`779.5^(o)F`

Thus, we can conclude that the boiling temperature of the water is
`779.5^(o)F`.