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

00:00
Question # 1

The net heat change 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 # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

A reaction will also be called a spontaneous if

Question # 7

Which one of the following is not related to spontaneous process

Question # 8

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

Question # 9

Calorie is equivalent to :

Question # 10

The majority of reactions which give stable products are

Question # 11

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

Question # 12

In endothermic reactions, the heat contents of the:

Question # 13

Neutralization of a strong acid with a strong base is

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

When no work is done by the system

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

Burning of coal and hydrocarbon in air are examples of :

Question # 24

Work is a

Question # 25

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

Question # 26

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 # 27

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

Question # 28

Burning of coal and hydrocarbon in air are examples of

Question # 29

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

Question # 30

Neutralization of a strong acid with a strong abase is:

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 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
2 Calorie is equivalent to :
A. 0.4184 J
B. 4184 J
C. 4.184 J
D. 418.4 J
3 By comparing both initial and final states of the system, we can describe the change taking place in the
A. Surrounding
B. Both a and c
C. System
D. None of above
4 Work is a
A. State function
B. Only function
C. Non-state function
D. State
5 Calorie is equivalent to
A. 0.4184 J
B. 41.84 J
C. 4.184 J
D. 418.4 J
6 The real or imaginary surface separating the system from the surrounding is called
A. Imaginary line
B. Boundary
C. Real line
D. All of above
7 The change in heat energy of a chemical reaction at constant temperature and pressure is called :
A. Enthalpy change.
B. Seat of sublimation.
C. Bind energy.
D. Internal energy change.
8 Reaction between Zn and CuSO4can be called a system under
A. Surrounding
B. Observation
C. system
D. None of above
9 The reaction of zinc with the copper sulfate solution is an example of.
A. Oxidation reduction reaction.
B. Spontaneous reaction.
C. Spontaneous redox reaction.
D. Non-spontaneous reaction.
10 The energy units in which heat changes usually expressed in SI-system are
A. Joule
B. Calorie
C. Kilo Joule
D. Both a and c

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