calorimetry Flashcards

(15 cards)

1
Q

The amount of heat resulting from chemical reactions can be determined experimentally through
the system of

A

calorimetry

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2
Q

Calorimetry uses the principle of the _____Law of Thermodynamics:
the amount of heat that was lost from an object or a substance is the same amount as the heat
gained by another.

A

first

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3
Q

the transfer of thermal energy between two bodies at different temperatures.

A

heat

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4
Q

(a redundant term, but one commonly used) increases the thermal energy of one body and
decreases the thermal energy of the other.

A

Heat flow

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5
Q

the amount of energy required to raise one gram of water by 1 degree C (1 kelvin).

A

Calorie
unit (cal)

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6
Q

The SI unit of heat, work, and energy. defined as the amount of energy used when a force of 1 newton moves an
object 1 meter.

It is named in honor of the English physicist James Prescott ___.

A

joule.

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7
Q

________ of a body of matter is the quantity of heat (q) it absorbs or releases when it
experiences a temperature change (ΔT) of 1 degree Celsius (or equivalently, 1 kelvin):

C = q/deltaT

A

Heat Capacity

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8
Q

determined by both the type and amount of substance that absorbs or
releases heat. It is therefore an extensive property—its value is proportional to the amount of
the substance.

A

Heat Capacity

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9
Q

The heat capacity of one gram of a substance is

A

Specific heat (c)

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10
Q

When the
reference is one mole o the substance, it is called the

A

molar heat capacity.

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11
Q

The heat capacity of a substance can be determined experimentally by

A

measuring the amount of heat energy supplied to the substance and the resulting temperature change

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12
Q

the amount ofenergythat must be added, in
the form ofheat, to one unit of mass of the substance in order to cause an increase of one unit intemperature.

A

Specific Heat Capacity (Cp) (J/Kxkg)

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13
Q

a device used to measure thermal changes.

A

calorimeter

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14
Q

type of calorimeter being used to measure the heat
transferred in processes open to atmosphere and is used to find the specific heat capacity of a solid that does not react with or dissolved in water.

A

The Constant-Pressure Calorimeter

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15
Q

type of calorimeter used to measure precisely the heat released in a combustion reaction.

A

Constant-Volume Calorimetry (Bomb calorimetry)

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