A1.11 kg piece of aluminum at 78.3 c is put into a glass with 0.210 kg of water at 15.0 c. what is their final temperature?

M = mass of aluminium = 1.11 kg

= specific heat of aluminium = 900

= initial temperature of aluminium = 78.3 c

m = mass of water = 0.210 kg

= specific heat of water = 4186

= initial temperature of water = 15 c

T = final equilibrium temperature = ?

using conservation of heat

Heat lost by aluminium = heat gained by water

M ( - T) = m (T - )

(1.11) (900) (78.3 - T) = (0.210) (4186) (T - 15)

T = 48.7 c

Two chemicals react in an endothermic reaction. What can be known about this reaction? The new substance will need more energy to form its chemical bonds than the old substance will release. ... More energy will be released from the old substance than the new substance will need to form its chemical bonds.