The Gibb's Phase rule
- Holds only for systems with more than components
- Predicts that a maximum of three phase can exits in one components system
- Does not count phase compositions as intensive variables
- Does not count pressure and temperature as intensive variables
The Correct Option is B
Solution and Explanation
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A hot plate is placed in contact with a cold plate of a different thermal conductivity as shown in the figure. The initial temperature (at time $t = 0$) of the hot plate and cold plate are $T_h$ and $T_c$, respectively. Assume perfect contact between the plates. Which one of the following is an appropriate boundary condition at the surface $S$ for solving the unsteady state, one-dimensional heat conduction equations for the hot plate and cold plate for $t>0$?
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