Acalorimeter is a(n) device that allows one to determine the change in enthalpy for a physical or chemical process. the of an object is the amount of required to change its by . the units for this quantity are . the (c) of a substance is the amount of required to raise the of of that substance by . the units for this quantity are . the (cm) of a substance is the amount of required to raise the of of that substance by . the units for this quantity are .