ECAT Pre Engineering Chemistry Chapter 7 MCQ Test With Answer

Top Scorers Of ECAT Chemistry Chapter 7 Thermo Chemistry MCQ`s Test

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hadia ejaz 29 - May - 2024 11 Min 27 Sec 90/120
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talha talha 25 - Apr - 2024 05 Min 36 Sec 85/120
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Shajee Haroon 10 - May - 2024 08 Min 54 Sec 85/120

ECAT Chemistry Chapter 7 Important MCQ's

Sr.#	Question	Answer
1	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
2	The majority of reactions which give stable products are:	A. Exothermic. B. Isothermal. C. Endothermic. D. Both (b) 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 b and c
4	Which one of the following is not related to spontaneous process	A. Unidirectional B. Real C. Irreversible D. Artificial
5	The majority of reactions which give stable products are	A. Exothermic B. Isothermal C. Endothermic D. Both a and c
6	Which of the following statements is contrary to the first law of themodynamics	A. Energy can neither be created nor destroyed B. One form of energy can be transferred into an equivalent amount of other kinds of energy C. In an adiabatic process, the work done is independent of its path D. Continuous production of mechanical work without supplying and equivalent amount of heat is possible
7	A state function is a	A. Microscopic property B. Macroscopic C. Unique property D. Both a and c
8	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)
9	In endothermic reactions, the heat contents of the surrounding air	A. Remains constant B. Decreases C. Increases D. Fluctuates rapidly
10	For the reaction : NaOH + HCl---------------> NaCl + H₂O the change in enthalpy is called:	A. Heat of reaction. B. Heat of formation. C. Heat of neutralization. D. Heat of combustion.

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ECAT Pre Engineering Chemistry Chapter 7 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 7 Thermo Chemistry

ECAT Chemistry Chapter 7 Thermo Chemistry

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

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

Calorie is equivalent to :

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

The majority of reactions which give stable products are

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

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

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

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

A reaction will also be called a spontaneous if :

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

In endothermic reactions, the heat contents of the:

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

In endothermic reactions, the heat contents of the surrounding air

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

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

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

The subject matter of first law of thermochemistry is based on

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:

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

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

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

When no work is done by the system

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

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

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

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

The majority of reactions which give stable products are:

Work is a

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

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ECAT Chemistry Chapter 7 Important MCQ's

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

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