fun facts Flashcards

1
Q

what are ways energy can be transferred

A

heat

work

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2
Q

heat

A

energy that is transferred as a result of temperature differences

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3
Q

work

A

a result of motion against an opposing force

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4
Q

a change in the system causessss

A

the opposite change for the surroundings

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5
Q

intensive property meaning

A

doesn’t depend on the other quantity of the substance present

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6
Q

extensive property

A

does depend on the quantity of substance present

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7
Q

chemical system classification

A

isolated
closed
open

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8
Q

what is enthalpy change

A

the energy transferred as heat by a chemical change at constant pressure.

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9
Q

when a piston is moved due to gases expanding, we say that energy is transferred to the surroundings as a result of

A

expansion work.

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10
Q

volume changes are most commonly seen in chem reactions involvingggg

A

gasessssss

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11
Q

if a system is heated it’s energy

A

increases

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12
Q

if a system does work it’s energy

A

decreases

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13
Q

if work is done on a system, energy

A

increases/ is gained/ is +

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14
Q

if work is done by a system energy

A

decreases / is negative / is lost

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15
Q

heating a system makes it

A

gain energy

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16
Q

heat being released from a system

A

reduces its energy