Answer: The main component of eggshells is Calcium carbonate, which reacts with hydrochloric acid to produce Carbon dioxide, Water, calcium chloride, and heat.
Answer:The energy is all being used to change the state of the substance (ordering the molcules) instead of increasing the temperature.
Q = Change in IE + Mechanical Work => c . f(T) + W where c = a constant and is = mCv dT
Hence the temperature does not change. This process is known as Isothermal Change.