“Heater Meals” are food packages that contain their own heat source. Just pour water into the heater unit, wait a few minutes, and voilà! You have a hot meal.

(a) Confirm that this is a product-favored reaction at equilibrium at 25°C.
(b) What mass of magnesium is required to produce sufficient energy to heat 225 mL of water (density = 0.995 g/mL) from 25°C to the boiling point?

Transcribed Image Text:

Mg(s) + 2 H₂O()→ Mg(OH)₂(s) + H₂(g)