Categorize as endothermic or exothermic
releases energy to the surroundings
∆H = -
absorbs energy from the surroundings
more energy in reactants' bonds than products'
feels cold
∆H = +
more energy in products' bonds than reactants'
feels hot
endothermic
exothermic
Categorize as endothermic or exothermic
evaporation
melting
sublimation
deposition
condensation
freezing
endothermic
exothermic
If the heat is written on the left side of the reaction (the reactant side), the reaction is
_________________________.
H2(g) + I2 + 53.0 kJ --> 2 HI(g)
If the heat is written on the right side of the reaction (product side), the reaction is
________________________.
LiBr(s) --> LiBr(aq) + 48.83 kJ
Determine whether the following processes are endothermic or exothermic.
NH4NO3(s) --> N2O(g) + 2 H2O(g) ΔH = -37.2 kJ
Determine whether the following processes are endothermic or exothermic.
N2(g) + O2(g) --> 2 NO(g) ΔH = +182.6 kJ