Q3. This question is about the reaction given below.
CO(g) + H2O(g) + CO.(g) +H,(9)
Enthalpy data for the reacting species are given in the table below.
Substance
CO(g)
H. O(g)
CO. CO)
H (9)
ΔΗ.
/ kJ mol-
-110
-242
-394
0
The standard enthalpy change for this reaction of carbon monoxide and steam is
А
+42 kJ mol-
B
-42 kJ mol
С
+262 kJ mol
D
-262 kJ mol
(Total 1 mark)

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature