Home / Unit-8 Energetics / Question
MCQ
While boiling water at 100 degrees C, if heating is continued, the temperature of the water:
Unit-8 Energetics
A Keeps rising steadily
B Falls quickly
C Doubles
D Stays constant while heat is used to convert water into steam
Explanation

During boiling, the absorbed heat is used to change liquid into vapour, so the temperature remains constant.

Related MCQs

The specific heat capacity of water is about 4.18 J/g/degree C, which is:
Unit-8 Energetics View
The energy needed to break the bonds of the reactant molecules is:
Unit-8 Energetics View
The heat of formation of oxygen gas O2(g) is zero because oxygen:
Unit-8 Energetics View
The heat of formation of an element in its standard state is:
Unit-8 Energetics View
Which statement about the spontaneity of reactions is most correct?
Unit-8 Energetics View
Thermochemistry is the study of:
Unit-8 Energetics View