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

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

Question # 2

The reaction of Zinc with copper sulphate solution is an example of

Question # 3

Reaction between Zn and CuSO4can be called a system under

Question # 4

The energy units in which heat changes usually expressed in Sl-system are:

Question # 5

In endothermic reactions, the heat content of the:

Question # 6

One mole of oxygen confined in a cylinder fitted with a piston is an example of

Question # 7

Calorie is equivalent to :

Question # 8

When a piece of zinc is added to the copper sulfate solution,____________ color of solution disappear.

Question # 9

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

Question # 10

In a chemical change, the energy in the from of heat will either be evolved or absorbed and this is called:

Question # 11

The reaction of zinc with the copper sulfate solution is an example of.

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

By state, we mean the

Question # 16

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

Question # 17

In a chemical change, the energy in the form of heat will either be evolved or absorbed and this is called

Question # 18

Which one of the following is not related to spontaneous process

Question # 19

Which one of the following is not related to spontaneous process.

Question # 20

Calorie is equivalent to

Question # 21

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

Question # 22

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

Question # 23

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

Question # 24

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

Question # 25

The majority of reactions which give stable products are:

Question # 26

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

Question # 27

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

Question # 28

Neutralization of a strong acid with a strong abase is:

Question # 29

When no work is done by the system

Question # 30

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

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which of the following statements is contrary to the first law of themodynamics
A. Energy can neither be created nor destroyed
B. One form of energy can be transferred into an equivalent amount of other kinds of energy
C. In an adiabatic process, the work done is independent of its path
D. Continuous production of mechanical work without supplying and equivalent amount of heat is possible
2 The energy units in which heat changes usually expressed in Sl-system are:
A. Joule.
B. Calorie.
C. Kilo Joule.
D. Both (a) and (c)
3 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
4 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:
A. Spontaneous process.
B. Natural process.
C. Non-Spontaneous process.
D. Both (a) and (b).
5 A state function is a
A. Microscopic property
B. Macroscopic
C. Unique property
D. Both a and c
6 It is noticed that energy in the from of heat is either evolved or absorbed as a result of a:
A. Physical change.
B. Chemical change.
C. Biological change.
D. All of above.
7 Reaction between Zn and CuSO4can be called a system under
A. Surrounding
B. Observation
C. system
D. None of above
8 Burning of coal and hydrocarbon in air are examples of
A. Non-spontaneous reaction
B. Spontaneous reaction
C. Natural reaction
D. Both b and c
9 The study of heat changes accompanying a chemical reaction is known as
A. Thermochemistry
B. Biochemistry
C. Physical chemistry
D. Analytical chemistry
10 When no work is done by the system
A. The volume of system decreases
B. The volume of system increases
C. The volume of system does not change
D. None of above

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