Assume that steam of 0.0290 kg (at 100.00°C) is added to 0.290 kg of water (primarily at 19.1°C.). The water is within a copper cup of mass of around 27.3 g. The cup is inside a perfectly insulated calorimetric container which prevents heat flow with the outside environment. Determine the final temperature (in °C) of the water after equilibrium is arrived.