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In an exothermic reaction, the total ent...

In an exothermic reaction, the total enthalpy of products is greater than that of reactants.

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In an endothermic reaction, the total enthalpy of products is greater than that of reactants.

For an exothermic reaction

In an exothermic reaction, the total enthalpy of reactant is ………….than that of products.

Mass of products is equal to mass of reactants.

Assertions: In an exothermic reaction ,a greater yield of products can be obtained by lowering the temperature. Reason: In an exothermic reactions , the heat constant of reactants is greater than that of the products.

In exoergic reaction, the total mass of products is ……………………….. than the total mass of reactants.

All combustion reactions are exothermic. Enthalpies of products are greater than enthalpies of reactants (Sigmav_(p)Delta_(f)H(P)gtSigmav_(R)Delta_(f)H(R))

In exothermic reactions, the energy content of the product is that of the substrate.

In which of the following reactions, the concentration of product is higher than the concentration of reactant at equilibrium? (K = equilibrium constant)

The heat content of the products is more than that of the reactants in an…………….reaction.

CENGAGE CHEMISTRY ENGLISH-THERMODYNAMICS-Exercises (True/False)
  1. The first law of thermodynamics is not adequate in predicting the dire...

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  2. In an exothermic reaction, the total enthalpy of products is greater t...

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  3. In an endothermic reaction, the total enthalpy of products is greater ...

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  4. The standard enthalpy of diamond is zero at 298K and 1 atm pressure.

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  5. The standard enthalpy of Br(2)(g) is taken to be zero at standard cond...

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  6. The magnitude of enthalpy of neutralisation of a weak acid is smaller ...

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  7. In the relation DeltaH = DeltaU + (Deltan(g))RT the units of Deltan(g)...

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  8. The terms bond enthalpy and bond dissociation enthalpy stand for one a...

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  9. At 298K, the enthalpy of combustion of CH(4) corresponds to the reacti...

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  10. For an exothermic reaction, DeltaH is positive.

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  11. For an edothemic reaction, DeltaH is positive.

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  12. Calorific value of fat

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  13. It is possible to calculate the value of DeltaH for the reaction H(2...

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  14. The enthalpy of combustion of dimond and enthalpy of formation of carb...

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  15. The SI unit of heat is 'calorie'.

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  16. Can we measure the absolute value of internal enegry?

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  17. w is positive when the work is done on the system. (T/F)

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  18. Heat of combustion is the amount of heat evolved when the number of mo...

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  19. The heat of neutralisation of HCI with NaOH is same as that of HNO(3) ...

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  20. The heat of neutralisation becomes large if either the acid or the bas...

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