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

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

Question # 2

Calorie is equivalent to :

Question # 3

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

Question # 4

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

Question # 5

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

Question # 6

Which of the following statements is contrary to the first law of themodynamics

Question # 7

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

Question # 8

In endothermic reactions, the heat contents of the:

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

When no work is done by the system

Question # 13

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

Question # 14

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

Question # 15

Reaction between Zn and CuSO4can be called a system under

Question # 16

Work is a

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

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 # 21

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

Question # 22

A state function is a

Question # 23

By state, we mean the

Question # 24

Burning of coal and hydrocarbon in air are examples of

Question # 25

The majority of reactions which give stable products are

Question # 26

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

Question # 27

Which one of the following is not related to spontaneous process

Question # 28

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

Question # 29

A reaction will also be called a spontaneous if

Question # 30

The majority of reactions which give stable products are:

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 Which one of the following is not related to spontaneous process
A. Unidirectional
B. Real
C. Irreversible
D. Artificial
2 If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air
A. remains constant
B. increases
C. decreases
D. remain unchanged
3 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.
4 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
5 In a chemical change, the energy in the form of heat will either be evolved or absorbed and this is called
A. Endothermic
B. Heat of products
C. Exothermic reaction
D. Heat of reaction
6 If an endothermic reaction is allowed to take place very rapidly in air, the temperature of the surrounding air :
A. Remains constant.
B. Decreases.
C. Increases.
D. Fluctuates rapidly.
7 The study of heat changes accompanying a chemical reaction is known as :
A. Thermochemistry.
B. Biochemistry.
C. Physical chemistry.
D. Analytical chemistry.
8 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.
9 Neutralization of a strong acid with a strong abase is:
A. Natural acid base reaction.
B. Artificial acid base reaction.
C. Spontaneous acid base reaction.
D. Both (a) and (c).
10 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.

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