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.
Topic 704 - Depreciation. You generally can't deduct in one year the entire cost of property you acquired, produced, or improved and placed in service for use either in your trade or business or to produce income if the property is a capital expenditure. Instead, you generally must depreciate such property.