Define ebullioscopic constant. Write its unit.

Explanation

**Step-by-Step Solution:**

1. **Definition of Ebullioscopic Constant:**
The ebullioscopic constant, also known as the molar elevation constant, is defined as the increase in the boiling point of a solvent when 1 mole of a non-volatile solute is dissolved in 1 kg of that solvent.

2. **Understanding the Concept:**
- The ebullioscopic constant is a measure of how much the boiling point of a solvent is elevated due to the presence of a solute.
- It is specifically applicable to solutions where the solute does not vaporize and is non-volatile.
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