Units of principal specific heat

[solace28]

mechanical (work) unit is J/kgK

Heat unit is kcal/kgK

what is this mechanical (work) unit, Heat unit ? I'm not able to understand it.

please elaborate

 

[Borek]

Not sure what you mean nor what you are asking about, but 1 cal = 4.184 J - both are units of energy, apart from numerical conversion constant there is no difference between them other than the name. So 1 kcal/kgK = 4184 J/kgK (whatever /kgK is).

 

[sophiecentaur]

mechanical (work) unit is J/kgK

Heat unit is kcal/kgK

what is this mechanical (work) unit, Heat unit ? I'm not able to understand it.

please elaborate

The unit is, in words, 'the number of kcal (or kJ) needed to raise the temperature of a kg of the substance by 1K" (one degree on the absolute scale or 1 celsius would do) Was it the "K" that was confusing in the OP?