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 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

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

Question # 3

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

Question # 4

Calorie is equivalent to

Question # 5

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

Question # 6

Reaction between Zn and CuSO4can be called a system under

Question # 7

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

Question # 8

Neutralization of a strong acid with a strong base is

Question # 9

The subject matter of first law of thermochemistry is based on

Question # 10

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

Question # 11

Which one of the following is not related to spontaneous process

Question # 12

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 # 13

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

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

Neutralization of a strong acid with a strong abase is:

Question # 19

Burning of coal and hydrocarbon in air are examples of :

Question # 20

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

Question # 21

In endothermic reactions, the heat contents of the:

Question # 22

Work is a

Question # 23

Burning of coal and hydrocarbon in air are examples of

Question # 24

A state function is a

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

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

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Sr.# Question Answer
1 Calorie is equivalent to
A. 0.4184 J
B. 41.84 J
C. 4.184 J
D. 418.4 J
2 Reaction between Zn and CuSO4can be called a system under
A. Surrounding
B. Observation
C. system
D. None of above
3 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
4 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
5 When a piece of zinc is added to the copper sulphate solution, _______ colour of solution disappear
A. Pink
B. Purple
C. Blue
D. Brown
6 By state, we mean the
A. Reaction of system
B. Scope of a system
C. Condition of a system
D. None of above
7 When a piece of zinc is added to the copper sulfate solution,____________ color of solution disappear.
A. Pink.
B. Purple.
C. Blue.
D. Brown.
8 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)
9 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).
10 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

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