Q.
Which of the following statement about thermochemistry is false?
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a
Heat of combustion is experimentally determined using bomb calorimeter
b
Enthalpy of formation of intermediate compounds is calculated applying Hess law
c
A thermochemical equation must be balanced using whole numbers only
d
Physical states of reactants and products must be mentioned while writing a thermochemical equation
answer is C.
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Detailed Solution
While balancing a thermochemical equation fractions can be used ; 2H2g+O2g→2H2Ol; ∆H=-572 kJ....1 ; H2g+12O2g→H2Ol; ∆H=-286 kJ....2 ; Both are thermochemical equations;
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