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Luke Class > Chap 6 Vocab > Flashcards

Chap 6 Vocab Flashcards

1
Q

Heat capacity

A

Amount of energy required to raise temp of an object by 1C

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2
Q

Specific heat capacity

A

Energy required to raise 1g of substance by 1C

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3
Q

Molar heat capacity

A

Energy to raise 1 mol of substance by 1C

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4
Q

Hesse’s law

A

Going to a set of products from set of reactants

Change1=change 2+3+4

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5
Q

Standard enthalpy heat transfee

A

Enthalpy change that accompanies formation of 1 mol of a compound at 25C from its elements

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6
Q

Fossil fuels

A

Consists of carbon based molecules derived from decomposition of a once living organism

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7
Q

Petrolium

A

Mix of hydrocarbons that is presented in certain rock strata and maybe extracted

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8
Q

Natural gas

A

Occurs underground, big flamable

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9
Q

Coal

A

Comprised of carbonized plant matter

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10
Q

Greenhouse effect

A

Warming effect caused by earth’s atmosphere

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11
Q

Syngas

A

Mixture of carbon monoxide + hydrogen obtained by coal gasification

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12
Q

Energy

A

Capacity to do work or transfer heat

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13
Q

Law of conservation of energy

A

Energy is finite, cannot be created or destroyed

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14
Q

Potential energy

A

Energy due to position or composition

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15
Q

Kinetic energy

A

Energy due to motion of an object

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16
Q

Heat

A

Energy transferred between 2 objects caused by temp difference

17
Q

Work

A

Force acting over distance

18
Q

Pathway

A

Links in chemical equation

19
Q

State function

A

A property independent of pathway

20
Q

System

A

Part of universe where attention is directed

21
Q

Surroundings

A

Everything in the universe surrounding thermodynamics

22
Q

Exothermic

A

Reaction where heat is released

23
Q

Endothermic

A

Heat enters

24
Q

Thermodynamics

A

Study of energy

25
Q

1st law of thermodynamics

A

Energy in universe is constant

26
Q

Internal energy

A

Property of a system that can be changed by flow or work, heat or both

27
Q

Enthalpy

A

Enthalpy change is equal to the energy flow of heat

28
Q

Calorimety

A

Science of measuring heat flow

Luke Class (1 decks)

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