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2SO2 g O2 g iff 2SO3 g bigtriangleup H -395 7kJ... - JAMB Chemistry 2013 Question

2SO2(g) + O2(g) ( \iff )2SO3(g)

( \bigtriangleup H = -395.7kJmol^{-1} )

In the reaction above, the concentration of 2SO3(g) can be in creased by

A
decreasing the pressure
B
decreasing the temperature
C
the addition of catalyst
D
increasing the temperature
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Correct Option: B
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