Solution: Given the following balanced equation,2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g)               ∆Hrxn = −368.4 kJwhich statement(s) is/are True?     I) The reaction is endothermic.II) The heat associated for reacting 1 mole of H 2O(l) is −184.2 kJ.III) The temperature of the solution increases when the reaction is carried out in a coffee-cup calorimeter. A) I only      B) II only     C) III only         D) both I and II         E) both II and III

Problem

Given the following balanced equation,

2 Na(s) + 2 H2O(l) → 2 NaOH(aq) + H2(g)               ∆Hrxn = −368.4 kJ

which statement(s) is/are True?    

 

I) The reaction is endothermic.

II) The heat associated for reacting 1 mole of H 2O(l) is −184.2 kJ.

III) The temperature of the solution increases when the reaction is carried out in a coffee-cup calorimeter.

 

A) I only      

B) II only     

C) III only         

D) both I and II         

E) both II and III