Define an exothermic process.

$\mathrm{NaOH}\left(\mathrm{aq}\right)+\mathrm{HCl}\left(\mathrm{aq}\right)\to \mathrm{NaCl}\left(\mathrm{aq}\right)+{\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right)+57\mathrm{kJ}$

The above reaction is ____ (exothermic/ endothermic)

Is it an exothermic or an endothermic process:

${\mathrm{N}}_2\left(\mathrm{g}\right) + 3{\mathrm{H}}_2\left(\mathrm{g}\right)\to 2{\mathrm{NH}}_3 + 92\mathrm{kJ}$

(Just write Exothermic or Endothermic)

Separate out exothermic and endothermic process from the following:

${\mathrm{H}}_2\mathrm{O}\left(\mathrm{l}\right) \to {\mathrm{H}}_2\mathrm{O}\left(\mathrm{s}\right) + 6\mathrm{kJ}$

Is it an exothermic or an endothermic process:

$\mathrm{Ice} + \mathrm{Heat} \to \mathrm{Water}$