CHM 101(GENERAL CHEMISTRY 1) | Study Mode

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Question 1

The law states that the heat change in a chemical reaction is independent of the route is ___________

Correct answer

Hess's law of constant heat summation

Explanation

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Question 2

The free energy is related to enthalpy by ?

G = H - TS

T= H > G

G > S

Explanation

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Correct option: A

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Question 3

The minimum energy which is required to break bonds to initiate a reaction is called ________

Explanation

Activation energy

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Question 4

The enthalpy of a reaction is represented by the symbol _______?

Explanation

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Correct option: D

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Question 5

During combustion, enthalpy change is _________ in value.

Postive

Negative

Neutral

Explanation

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Correct option: B

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Question 6

The energy required to raise temperature of 1g of liquid by 1 degree Celsius is termed _______

Correct answer

Specific heat capacity

Explanation

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Question 7

________ is the change in enthalpy of a system when one mole is dissolved in a given quantity of solvent at a given temperature.

Correct answer

Heat of solution

Explanation

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Question 8

________ is a heat of reaction that is always negative .

Correct answer

Heat of combustion

Explanation

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Question 9

_________ is the heat change when one mole of an element changes from one allotropic form to another.

Correct answer

Heat of transition

Explanation

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Question 10

__________ is the heat change when one mole of a solid is directly converted to gaseous state at a given temperature below its melting point .

Correct answer

Heat of sublimation

Explanation

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CHM 101(GENERAL CHEMISTRY 1) | Study Mode

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