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

MDCAT Chemistry Chapter 7 Reaction Kinetics Online Test MCQs With Answers

Question # 1

Which of the following processes has always. ∆H=-ve

Choose an answer

Formation of compound

Dilution of a solution

Dissolution of ionic compound

Combustion

Skip

Question # 2

Change in enthalpy (∆H) of a system can be calculated by

Choose an answer

∆H=∆E - PV

ΔH =ΔE +q

∆H = ∆E - q

∆Η = ΔΕ + P∆V

Skip

Question # 3

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

Skip

Question # 4

∆H=∆E is true for which of the following reaction

Choose an answer

K+H2O----->KOH+H2

N2+3H2------>2NH3

AlCl3+3NaOH--->Al(OH)3+3 NaCl

4Na + O2----->2Na2O

Skip

Question # 5

The net heat change in a chemical reaction is the same whether it is brought about in two or more different ways in one or several steps.it is known as

Choose an answer

Henry's law

Hess's law

joule's law

Law of conservation of energy

Skip

Question # 6

Total heat content of a system is called

Choose an answer

Internal energy

Entropy

Enthalpy

All of these

Skip

Question # 7

Enthalpy of a system can be calculated by which of following relationship

Choose an answer

q=ΔΕ

q=m×S×∆T

q=pv

q=m×v×∆T

Skip

Question # 8

NaOH+HCI- NaCI+ H2O. Enthalpy change in the above reaction is called

Choose an answer

Enthalpy of reaction

Enthalpy of Neutralisation

Enthalpy of formation

Enthalpy of combustion

Skip

Question # 9

Which of the following enthalpy change always have a negative value

Choose an answer

∆Hf

∆H sol

∆Hc

∆Hat

Skip

Question # 10

Most of the reactions which give stable products are

Choose an answer

Endothermic

Exothermic

Isothermal

Non of these

Skip

Question # 11

The enthalpy of formation of a compound is

Choose an answer

Positive

Either positive or negative

Negative

None

Skip

Back