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

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

Question # 2

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

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Calorie is equivalent to

Question # 7

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

Question # 8

Reaction between Zn and CuSO4can be called a system under

Question # 9

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

Question # 10

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

Question # 11

For a given process, the heat changes at constant volume ( qv)are related to other as:

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

Neutralization of a strong acid with a strong abase is:

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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

Question # 21

Burning of coal and hydrocarbon in air are examples of :

Question # 22

Which one of the following is not related to spontaneous process

Question # 23

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

Question # 24

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

Question # 25

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

Question # 26

Burning of coal and hydrocarbon in air are examples of

Question # 27

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

Question # 28

The subject matter of first law of thermochemistry is based on

Question # 29

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

Question # 30

A reaction will also be called a spontaneous if :

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 When a piece of zinc is added to the copper sulphate solution, _______ colour of solution disappear
A. Pink
B. Purple
C. Blue
D. Brown
2 A state function is a
A. Microscopic property
B. Macroscopic
C. Unique property
D. Both a and c
3 Some non-spontaneous processes can be made to take place by supplying energy to the system from
A. Internal source
B. Any source
C. External source
D. All of above
4 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
5 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
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 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:
A. Henry's law.
B. Joule's principle.
C. Hess's law.
D. Law of conservation of energy.
8 Some Non-spontaneous process can be made to take place by supplying energy to the system from :
A. Internal source.
B. Any source.
C. External source.
D. All of above.
9 The majority of reactions which give stable products are:
A. Exothermic.
B. Isothermal.
C. Endothermic.
D. Both (b) and (c).
10 Work is a
A. State function
B. Only function
C. Non-state function
D. State

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