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

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

Question # 2

Burning of coal and hydrocarbon in air are examples of

Question # 3

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

Question # 4

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

Question # 5

Neutralization of a strong acid with a strong abase is:

Question # 6

The subject matter of first law of thermochemistry is based on

Question # 7

The majority of reactions which give stable products are

Question # 8

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

Question # 9

By state, we mean the

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

Burning of coal and hydrocarbon in air are examples of :

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

A reaction will also be called a spontaneous if :

Question # 19

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

Question # 20

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

Question # 21

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

Question # 22

Calorie is equivalent to

Question # 23

In endothermic reactions, the heat contents of the:

Question # 24

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

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

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

Question # 30

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

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 The majority of reactions which give stable products are
A. Exothermic
B. Isothermal
C. Endothermic
D. Both a and c
2 A state function is a
A. Microscopic property
B. Macroscopic
C. Unique property
D. Both a and c
3 Burning of coal and hydrocarbon in air are examples of :
A. Non-spontaneous reaction.
B. Spontaneous reaction.
C. Natural reaction
D. Both (a) and (C)
4 If an endothermic reaction is allowed to take place very rapidly in the air, the temperature of the surrounding air:
A. Remains constant.
B. Increase.
C. Decreases.
D. Remain unchanged.
5 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
6 Work is a
A. State function
B. Only function
C. Non-state function
D. State
7 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.
8 In a chemical change, the energy in the from 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.
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 Calorie is equivalent to :
A. 0.4184 J
B. 4184 J
C. 4.184 J
D. 418.4 J

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