heat transfer

[505968894]

How do you measure heat transfer?

[Laura Dinh 1L]

For the purposes of the current unit, you use either heat capacity, specific heat capacity, or molar heat capacity (C). You then use the formula ∆H = nC∆T, where n = mols or amount of substance, C = molar heat capacity, ∆T = temp change, ∆H = change in enthalpy (or heat at constant pressure). If you're not using moles of substance, then C would be a diff value (specific heat capacity if you're using grams, or heat capacity if you're talking about a specific device like a calorimeter).

[Emilia Yuja 3L]

To add on to the discussion, the professor also mention that when you are finding out a heat transfer, you should keep in mind the formula: heat given off by reaction + heat absorbed by the solution = 0. or q(system) + q (surrounding) = 0. This helps to get the correct sign when you are doing this type of problems.