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

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

Question # 2

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 # 3

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

Question # 4

A reaction will also be called a spontaneous if

Question # 5

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

Question # 6

Calorie is equivalent to :

Question # 7

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

Question # 8

A reaction will also be called a spontaneous if :

Question # 9

By state, we mean the

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

A state function is a

Question # 14

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

Question # 15

When a piece of zinc is added to the copper sulphate solution, _______ colour of solution disappear

Question # 16

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

Question # 17

When no work is done by the system

Question # 18

The majority of reactions which give stable products are:

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

The subject matter of first law of thermochemistry is based on

Question # 24

Reaction between Zn and CuSO4can be called a system under

Question # 25

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

Question # 26

Burning of coal and hydrocarbon in air are examples of

Question # 27

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

Question # 28

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

Question # 29

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

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 In endothermic reactions, the heat contents of the surrounding air
A. Remains constant
B. Decreases
C. Increases
D. Fluctuates rapidly
2 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
3 The reaction of Zinc with copper sulphate solution is an example of
A. Oxidation reduction reaction
B. Spontaneous reaction
C. Spontaneous redox reaction
D. Non-spontaneous reaction
4 The study of heat changes accompanying a chemical reaction is known as
A. Thermochemistry
B. Biochemistry
C. Physical chemistry
D. Analytical chemistry
5 In endothermic reactions, the heat content of the:
A. Products is more than that of reactants.
B. Reactants is more than than to products.
C. Both (a) and (b).
D. Reactants and products are equal.
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 Which one of the following is not related to spontaneous process.
A.

Unidirectional.

B. Real.
C.

Irreversible.

D. Artificial.
8 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
9 The subject matter of first law of thermochemistry is based on:
A. First law of Themochemistry.
B. First law of Thermodynamics.
C. Second law of Themochemistry.
D. Second law of Thermodynamics.
10 Work is a
A. State function
B. Only function
C. Non-state function
D. State

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