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Calculate the temperature at triple point of zinc if the vapour pressures of solid and liquid zinc are given byrn- $ln P_{Z n(s)}=frac{-15,780}{t}-0.755 ln T+19.3$ (atm)rn- $ln P_{Z n(l)}=frac{-15,250}{t}-2.255 ln T+21.3$ (atm)
Accepted Answer
Assuming the triple point is at 1 atm, we can equate the vapour pressures of solid and liquid zinc:
$ln (1)=frac{-15,780}{T}-0.755 ln T+19.3=frac{-15,250}{T}-2.255 ln T+21.3$
Solving for T, we get:
T = 693 K
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