Noun. 1. specific heat-the heat required to raise the temperature of one gram of a substance one degree centigrade. heat, heat energy-a form of energy that is transferred by a difference in temperature. 1  Facebook.
You begin to depreciate your property when you place it in service for use in your trade or business or for the production of income. You stop depreciating property either when you have fully recovered your cost or other basis or when you retire it from service, whichever happens first.
Leasehold improvements are no longer depreciated as 15 year property. They are now depreciated as 39 Year property the same as commercial buildings. If you don't stay the full 39 years you take the remaining basis in the year of disposition.