Consider the following three processes, each involving 10.0 g of H2O taken as the system:
(i) warming liquid water from 25 °C to 50 °C,
(ii) melting ice at 0 °C,
(iii) condensing steam at 100 °C.
Without performing detailed calculations, rank the magnitudes of q for the three processes from largest to smallest and state the sign of q for each.