As per Kirchhoff s equation, the heat of reaction is affected by the__________________?

Related Mcqs:

1. If the molar heat capacities (Cp or Cv) of the reactants and products of a chemical reaction are identical, then, with the increase in temperature, the heat of reaction will___________________?

   A. Increase
   B. Decrease
   C. Remain unaltered
   D. Increase or decrease; depends on the particular reaction

2. ______________ equation gives the effect of temperature on heat of reaction ?

   A. Kirchoff’s
   B. Maxwell’s
   C. Antoine
   D. Kistyakowsky

3. The heat evolved in the combustion of benzene is represented by the equation: C6H6 + 7.5 O2 = 6CO2 + 3H2O, ΔH = 3264.6 kJ/kg. mole The heat energy change, when 39 gm of C6H6 is burnt in an open container, will be _____________ kJ/kgmole?

   A. +816.15
   B. +1632.3
   C. -1632.3
   D. -2448.45

4. Equation which relates pressure, volume and temperature of a gas is called the__________________?

   A. Equation of state
   B. Gibbs Duhem equation
   C. Ideal gas equation
   D. None of these

5. The heat change for the reaction, C(s) + 2S(s) → CS2(l), is 104.2 kJ. It represents the heat of_________________?

   A. Formation
   B. Solution
   C. Combustion
   D. Fusion

6. The following heat engine produces power of 100,000 kW. The heat engine operates between 800 K and 300 K. It has a thermal efficiency equal to 50% of that of the Carnot engine for the same temperature. The rate at which heat is absorbed from the hot reservoir is____________________?

   A. 100,000 kW
   B. 160,000 kW
   C. 200,000 kW
   D. 320,000 kW

7. Efficiency of a heat engine working on Carnot cycle between two temperature levels depends upon the__________________?

   A. Two temperatures only
   B. Pressure of working fluid
   C. Mass of the working fluid
   D. Mass and pressure both of the working fluid

8. Change of heat content when one mole of compound is burnt in oxygen at constant pressure is called the__________________?

   A. Calorific value
   B. Heat of reaction
   C. Heat of combustion
   D. Heat of formation

9. The equation relating E, P, V and T which is true for all substances under all conditions is given by (∂E/∂V)T = T(∂P/∂T)H – P. This equation is called the ___________________?

   A. Maxwell’s equation
   B. Thermodynamic equation of state
   C. Equation of state
   D. Redlich-Kwong equation of state

10. The equation, (d loge PA/d loge xA) = (d loge PA/d loge xB) applicable to a binary solution of components. A and B in equilibrium with their vapors at constant temperature and pressure is called the _____________ equation?

    A. Van Laar
    B. Margules
    C. Gibbs-Duhem
    D. Gibbs-Duhem-Margules