The vapour pressure of water at 20 c is 2.34 kpa. given that the heat of vaporisation is 2537.4 kj/kg, use the clausius-clapeyron equation to give the vapour pressure at 40 c.

Explanation:

The given data is as follows.

        = 2.34 kPa = 2.34 \times 1000 Pa = 2340 Pa = 0.0231 atm

  = (20 + 273) K = 293 K

  = 2537.4 kJ/kg = 2537400 J/kg

          = ?,         = (40 + 273) K = 313 K

According to Clausius-Clapeyron equation,

              =

                                =        

                                 = atm

or,                             = 18846.45 kPa

Thus, we can conclude that the vapor pressure at is 18846.45 kPa.

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

explanation:

subscribe to my yt channel yoongi jmz

follow my insta yoongi_jams

stan bts