A. Formation
B. Combustion
C. Reaction
D. Vaporisation
Related Mcqs:
- Pick out the wrong unit conversion of calorific value?
A. 1 kcal/kg = 1.8 BTU/lb = 4.186 kJ/kg
B. 1 BTU/ft3 = 8.9 kcal/m3 = 0.038 MJ/m3
C. 1 BTU/lb = 2.3 kcal/kg
D. 1 kcal/m3 = 0.1124 BTU/ft3 - The heat capacity of a solid compound is calculated from the atomic heat capacities of its constituent elements with the help of the___________________?
A. Trouton’s rule
B. Kopp’s rule
C. Antoine equation
D. Kistyakowsky equation - If pH value of a solution is 8, then its pOH value will be ____________________?
A. 6
B. 1
C. 7
D. 10 - 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 - 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 - Heat of neutralisation of HCl and NaOH is – 57.46 kJ/Kg mole. The heat of ionisation of water will be _____________ kJ/Kg mole?
A. 57.46
B. -57.46
C. 114.92
D. -28.73 - Heat of transition is the heat evolved or absorbed, when a substance is converted from_________________?
A. Vapor to liquid
B. Vapor to solid
C. Solid to liquid
D. One allotropic form to another allotropic form - A rigid vessel containing three moles of nitrogen gas at 30°C is heated to 250°C. Assume the average capacities of nitrogen to be Cp = 29.1 J/mole.°C and, Cv = 20.8 J/mole.°C. The heat required, neglecting the heat capacity of the vessel, is__________________?
A. 13728 J
B. 19206 J
C. 4576 J
D. 12712 J - Heat capacity of air can be approximately expressed as, Cp = 26.693 + 7.365 x10-3 T, where, Cp is in J/mole.K and T is in K. The heat given off by 1 mole of air when cooled at atmospheric pressure from 500°C to – 100°C is ____________________?
A. 10.73 kJ
B. 16.15 kJ
C. 18.11 kJ
D. 18.33 kJ - “The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements.” This is the statement of___________________?
A. Law of Petit and Dulong
B. Kopp’s rule
C. Nernst heat theorem
D. Trouton’s rule
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