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EleoNora [17]
2 years ago
16

At the normal boiling temperature of iron, TB = 3330 K, the rate of change of the vapor pressure of liquid iron with temperature

is 3.72 x 10-3 atm/K. Calculate the molar latent enthalpy of boiling of iron at 3330 K:
Physics
2 answers:
Margaret [11]2 years ago
8 0

The molar latent enthalpy of boiling of iron at 3330 K is  ΔH = 342 \times 10^3 J.

<u>Explanation:</u>

Molar enthalpy of fusion is the amount of energy needed to change one mole of a substance from the solid phase to the liquid phase at constant temperature and pressure.

                      d ln p = (ΔH / RT^2) dt

                   (1/p) dp = (ΔH / RT^2) dt

                    dp / dt = p (ΔH / RT^2) = 3.72 \times 10^-3

                  (p) (ΔH) / (8.31) (3330)^2 = 3.72 \times 10^-3

                          ΔH = 342 \times 10^3 J.

Bianca Figueiredo Pinudo Gomes2 years ago
0 0

H = 102,94

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3 years ago
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- The complete information is missing, it is completed below.

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- The plates are separated by d = 0.52 cm

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The battery is now disconnected from the plates and the separation of the plates is doubled ( = 1.04 cm).

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