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Question
Chemistry
Which one of the following is always not negative?
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Q. Which one of the following is always not negative?
J & K CET
J & K CET 2009
Thermodynamics
A
Enthalpy of combustion
11%
B
Enthalpy of formation
54%
C
Enthalpy of neutralisation
18%
D
Lattice enthalpy
17%
Solution:
Combustion reactions are exothermic so the value for the enthalpy change $(\Delta H)$ is always negative.