Which way does heat flow? From a substance of lesser thermal energy to one of greater thermal energy. From a substance of greater thermal energy to one of lesser thermal energy.

From a substance of greater thermal energy to one of lesser thermal energy.

Explanation:

Heat always flows from a warmer object (more thermal energy) to a cooler object (less thermal energy).

the dissociation of nickel hydroxide is follows:

the concentration of hydroxide ion is

the equilibrium constant value of nickel hydroxide is = 6.1 * 10^-^1^6 and thus equilibrium equation can be written as:

thus, concentration of ni is 0.23 * 10^-^4 mol /l