One in which the reactants are in different phases is called

Heterogeneous

Explanation: Heterogeneous catalysts are catalysts that are in a different phase than the reactants. For example, the catalyst might be in the solid phase while the reactants are in a liquid or gas phase. A catalyst that is in the same phase as the reactants is called a homogeneous catalyst. Enzymes are an example of homogeneous catalysts, and acids can also be homogeneous catalysts.

The two parts that indicate the literary point of view of the essay are: " remember that it always troubled me to account for those unvarying boots in the window, for he made only what was ordered, reaching nothing down, and it seemed so inconceivable that what he made could ever have failed to fit."

"Besides, they were too beautiful—the pair of pumps, so inexpressibly slim, the patent leathers with cloth tops, making water come into one's mouth, the tall brown riding boots with marvellous sooty glow, as if, though new, they had been worn a hundred years. Those pairs could only have been made by one who saw before him the Soul of Boot—so truly were they prototypes incarnating the very spirit of all foot-gear."