More Classes
5th Class
6th Class
7th Class
8th Class
9th Class
10th Class
11th Class
12th Class
NAT I
NAT II
CSS
IQ
General Knowledge
MDCAT
ECAT
GAT General
GAT Subject
Other Links
Go to Home
Online Tests
MDCAT Chemistry Chapter 7 Reaction Kinetics Online Test MCQs With Answers
Question # 1
One of the best applications of Hess's law to calculate the lattice energy of ionic compound is
Choose an answer
Measurement of enthalpy change in a calorimeter
Studying of first law of thermodynamics
Measurement of a heat of formation of a compound
Born-Haber cycle
Previous
Skip
Next
Question # 2
The change in enthalpy of a system when one mole of the substance is completely burnt in excess of air or oxygen is called
Choose an answer
Heat of reaction
Heat of formation
Heat of atomization
Heat of combustion
Previous
Skip
Next
Question # 3
Born-Haber cycle is an application of
Choose an answer
Hess's law
1" law of thermodynamics
Avogadro's law
1law of thermochemistry
Previous
Skip
Next
Question # 4
The enthalpies of all elements in their standard states are
Choose an answer
Unity
always +ve
always -ve
zero
Previous
Skip
Next
Question # 5
Which of the following processes has always. ∆H=-ve
Choose an answer
Formation of compound
Dilution of a solution
Dissolution of ionic compound
Combustion
Previous
Skip
Next
Question # 6
Choose from the followings the correct statement about Born Haber cycle
Choose an answer
Born Haber cycle is different from Hess's law
The energy changes in a cyclic process is not zero
The lattice energy of crystalline substances can be calculated easily
None
Previous
Skip
Next
Question # 7
Which of the following has positive value of enthalpy
Choose an answer
Neutralisation
Atomization
combustion
All of the above
Previous
Skip
Next
Question # 8
The heat of reaction depends upon
Choose an answer
Temperature of the reactants
Physical states of the reactants and the products
Both A) and B)
Path of the reaction and the temperature
Previous
Skip
Next
Question # 9
What is correct about heat of combustion
Choose an answer
It is applicable to gaseous substances only
It is always negative
It is always positive
It is positive in some cases while negative in other
Previous
Skip
Next
Question # 10
A system absorbs 100 kJ heat and performs 50 kJ work on the surroundings. The increase in internal energy of the system is
Choose an answer
50kJ
100 kJ
150kJ
5000 kJ
Previous
Skip
Next
Question # 11
In order to determine ∆H (latt) of ionic compound which is correct relationship
Choose an answer
∆H latt. = ∆Hf - ∆Hx
∆H latt. = ∆Ha + ∆Hv
∆H latt. = ∆Hf + ∆Hx
∆H latt. = ∆Hf - ∆H sol.
Previous
Skip
Next
Back