The enthalpy combustion of a substance...

The enthalpy combustion of a substance

Always positive

Always negative

Numerically equal to the heat of formation

1 and 3 both

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Enthalpy of sublimation of a substance is equal to

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ALLEN-THERMODYNAMICS -EXERCISE -3

X gm of ethanal was subjected to combustion in a bomb calorimeter and ...
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The following are heats of reactions : (A) DeltaH(f)^(@) of H(2)O(l)...
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The enthalpy combustion of a substance
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The value of Delta H for the combustion of C(s) is - 94.4 Kcal. The he...
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In the combustion of 0.4 g. of CH(4) 0.25 Kcal. Of heat is liberated. ...
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If C(6)H(12)O(6)(s) +6O(2)(g) to 6CO(2)(g)+6H(2)O (l), triangleH=680 K...
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Which of the following equations corresponds to the enthalpy of combus...
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Heat of formation of CO2 is 94.0 K.cal. What would be thequantity of h...
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The amount of heat liberated when one mole of NH(4)OH reacts with one ...
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If H^(+)+OH^(-)to H(2)O(l)+13.7 Kcal, then the value of heat of neutra...
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The heat of neutralisation of a strong dibasic acid in dilute solution...
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The temperature of a 5mL of strong acid increases by 5^(@) when 5 mL o...
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The enthalpy of neutralisation of HCl by NaOH IS -55.9 kJ and that of...
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If water is formed from H and OH^(-) ions then the enthalpy of formati...
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The change in the enthalpy of NaOH+HCl rarr NaCl+H(2)O is called :
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Heat of neutralisation of oxalic acid is -106.7 KJ mol^(-1) using NaOH...
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The heat of combustion of C2H4 C2H6 and H2 are- 1409.5 kJ,- 1558.3kJ a...
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The enthalpy of combustion of H(2), cyclohexene (C(6)H(10)) and cycloh...
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Bond energy of a molecule :
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Among the following for which reaction heat of reaction represents bon...
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