Which of the following reaction is endothermic?
...Which of the following reaction is endothermic?
C(s) + O2(g) → CO2(g)
CaO(s) + H2O(l) → Ca(OH)2(s)
C(s) + H2O(g) → CO(g) + H2(g)
HCl(aq) + NaOH(aq) → NaCl(aq) + H2O(l)
Correct answer is C
Water Gas is a mixture of carbon monoxide and hydrogen produced from synthesis gas.H2O+C−−>H2+CO (H=+131KJ/mol)
An Endothermic process is any process which requires or absorbs thermal energy from its surroundings, usually in the form of heat.in Endothermic reaction ∆H is positive.
Therefore it is Endothermic