ECAT Pre Engineering Chemistry Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 7 Thermo Chemistry

Try The MCQ's Test For ECAT Chemistry Chapter 7 Thermo Chemistry

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ECAT Chemistry Chapter 7 Thermo Chemistry

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Question # 1

If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air

Question # 2

Some Non-spontaneous process can be made to take place by supplying energy to the system from :

Question # 3

Burning of coal and hydrocarbon in air are examples of :

Question # 4

It is noticed that energy in the from of heat is either evolved or absorbed as a result of a:

Question # 5

The subject matter of first law of thermochemistry is based on:

Question # 6

Calorie is equivalent to

Question # 7

The study of heat changes accompanying a chemical reaction is known as :

Question # 8

Some non-spontaneous processes can be made to take place by supplying energy to the system from

Question # 9

The real or imaginary surface separating the system from the surrounding is called

Question # 10

By comparing both initial and final states of the system, we can describe the change taking place in the

Question # 11

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

Question # 12

If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air

Question # 13

Reaction between Zn and CuSO4can be called a system under

Question # 14

Enthalpy of neutralization of all the strong acids and strong bases has the same value because:

Question # 15

When no work is done by the system

Question # 16

In endothermic reactions, the heat contents of the surrounding air

Question # 17

If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air:

Question # 18

The majority of reactions which give stable products are

Question # 19

The study of heat changes accompanying a chemical reaction is known as

Question # 20

Which of the following statements is contrary to the first law of thermodynamics?

Question # 21

The change in heat energy of a chemical reaction at constant temperature and pressure is called

Question # 22

A reaction will also be called a spontaneous if :

Question # 23

Neutralization of a strong acid with a strong base is

Question # 24

When a system absorbs energy, the sign of delta E is

Question # 25

The majority of reactions which give stable products are:

Question # 26

A process which takes place on its own without any outside assistance and moves from a non-equilibrium stat towards an equilibrium stat is termed as:

Question # 27

In endothermic reactions, the heat contents of the:

Question # 28

Burning of coal and hydrocarbon in air are examples of

Question # 29

For the reaction : NaOH + HCl---------------> NaCl + H2O the change in enthalpy is called:

Question # 30

Calorie is equivalent to :

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 A process which takes place on its own without any outside assistance and moves from a non-equilibrium state towards an equilibrium state is termed as
A. Spontaneous process
B. Natural process
C. Non-spontaneous process
D. Both a and b
2 One mole of oxygen confined in a cylinder fitted with a piston is an example of
A. Surrounding
B. System and surrounding
C. System
D. State function
3 The subject matter of first law of thermochemistry is based on
A. First law of Thermochemistry
B. First law of Thermodynamics
C. Second law of Thermochemistry
D. Second law of Thermodynamics
4 The reaction of Zinc with copper sulphate solution is an example of
A. Oxidation reduction reaction
B. Spontaneous reaction
C. Spontaneous redox reaction
D. Non-spontaneous reaction
5 A reaction will also be called a spontaneous if
A. It does not need energy to start with
B. It needs energy to carry the whole process
C. It needs energy at the end of reaction
D. It needs energy to start with
6 Neutralization of a strong acid with a strong base is
A. Natural acid base reaction
B. Artificial acid base reaction
C. Spontaneous acid base reaction
D. both a and c
7 The net heat in a chemical reaction is same, whether it is brought about in two or more different ways in one or several steps. It is known as
A. Henry's law
B. Joule's princile
C. Hess's law
D. law of conservation of energy
8 For a given process, the heat changes at constant volume ( qv)are related to other as:
A.

qp= qv

B.

qp<qv

C.

qp>qv

D.

qp=qv/2
9 A reaction will also be called a spontaneous if :
A. It does no need energy to start with.
B. It needs energy to carry the whole process.
C. It needs energy at the end of reaction.
D. It needs energy to stat with.
10 For the reaction : NaOH + HCl---------------> NaCl + H2O the change in enthalpy is called:
A. Heat of reaction.
B. Heat of formation.
C. Heat of neutralization.
D. Heat of combustion.

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