1.

The heat evolved in the combustion of benzene is given by C_(6)H_(6)+7(1)/(2)O_(2)rarr6CO_(2)(g)+3H_(2)O(l),DeltaH=-3264.6 kJWhich of the following quantities of heat energy will be evolved when 39_(g)C_(6)H_(6) are burnt

Answer»

816.15 KJ
1632.3 kJ
6528.2 kJ
2448.45 kJ

Solution :78g of benzene on COMBUSTION PRODUCES
HEAT =-3264.6 kJ
`therefore" 39 g will produce = "(-3264.6)/(2)=-1632.3 kJ`.


Discussion

No Comment Found