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 from of heat is either evolved or absorbed as a result of a:

Question # 2

Neutralization of a strong acid with a strong base is

Question # 3

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

Question # 4

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

Question # 5

The majority of reactions which give stable products are

Question # 6

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 # 7

By state, we mean the

Question # 8

In endothermic reactions, the heat contents of the:

Question # 9

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 # 10

A process which takes place on its own without any outside assistance and moves from a non-equilibrium state towards an equilibrium state is termed as

Question # 11

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

Question # 12

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

Question # 13

Calorie is equivalent to :

Question # 14

Work is a

Question # 15

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

Question # 16

When no work is done by the system

Question # 17

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 # 18

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

Question # 19

Which one of the following is not related to spontaneous process

Question # 20

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

Question # 21

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

Question # 22

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

Question # 23

In endothermic reactions, the heat contents of the surrounding air

Question # 24

Calorie is equivalent to

Question # 25

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

Question # 26

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

Question # 27

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

Question # 28

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

Question # 29

A state function is a

Question # 30

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

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ECAT Chemistry Chapter 7 Important MCQ's

Sr.# Question Answer
1 The real or imaginary surface separating the system from the surrounding is called
A. Imaginary line
B. Boundary
C. Real line
D. All of above
2 A reaction will also be called a spontaneous if :
A. It does no 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 stat with.
3 A state function is a
A. Microscopic property
B. Macroscopic
C. Unique property
D. Both a and c
4 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
5 The majority of reactions which give stable products are
A. Exothermic
B. Isothermal
C. Endothermic
D. Both a and c
6 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
7 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)
8 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.
9 The majority of reactions which give stable products are:
A. Exothermic.
B. Isothermal.
C. Endothermic.
D. Both (b) and (c).
10 Which of the following statements is contrary to the first law of thermodynamics?
A. Energy can neither be created no destroyed.
B. One form of energy can be transferred into an equivalent amount of the kinds of energy.
C. In a adiabatic process, the work done is independent of its path.
D. Continuous production of mechanical work without supplying an equivalent amount of heat is possible.

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