A) \[x\,kJ\]
B) \[\frac{x}{3}\,kJ\]
C) \[3x\,kJ\]
D) \[\frac{3x}{2}\,kJ\]
Correct Answer: B
Solution :
\[{{C}_{2}}{{H}_{5}}OH+3{{O}_{2}}\xrightarrow{{}}2C{{O}_{2}}+3{{H}_{2}}O;\Delta H=-xkJ\] By burning with 3 moles of \[{{O}_{2}}\] heat evolved \[=-xkJ\] \[\therefore \]by burning with 1 mole of \[{{O}_{2}}\] heat evolved \[=-\frac{x}{3}kJ\]You need to login to perform this action.
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