physical thermochemistry

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20 Terms

1
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at what temperature does ice begin to melt?

0 degrees celsius

2
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at what temperature is ice solid at?

-5 degrees celsius

3
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what temperature does water boil at?

100 degrees celsius

4
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when do you use Q=mHf

melting/freezing

5
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when do you use Q=mHv

vaporization/condensation

6
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gas—>solid

deposition

7
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gas—>liquid

condensation

8
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liquid—>gas

vaporization

9
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liquid—>solid

freezing

10
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solid—>liquid

melting

11
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solid—>gas

sublimation

12
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what does Q represent?

the heat in joules/calories

13
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what does M represent?

mass in grams

14
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what does ΔT represent?

the change in temperature in Celsius

15
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what does C represent?

specific heat capacity

16
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when does boiling take place?

when atmospheric pressure = vapor pressure

17
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standard pressure for atmosphere

1atm

18
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standard pressure for KPa

101.3

19
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standard pressure for TORR

760

20
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standard pressure for mmHg

760