## Thermodynamics B/C

UTF-8 U+6211 U+662F
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### Re: Thermodynamics B/C

Okay, not sure if it's my turn or not but:

Why do different solids have different heat capacities?

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### Re: Thermodynamics B/C

UTF-8 U+6211 U+662F wrote:Okay, not sure if it's my turn or not but:

Why do different solids have different heat capacities?

Answer: The bonds between the atoms of some materials are stronger, thus needing more heat to raise the temperature
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UTF-8 U+6211 U+662F
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### Re: Thermodynamics B/C

UTF-8 U+6211 U+662F wrote:Okay, not sure if it's my turn or not but:

Why do different solids have different heat capacities?

Answer: The bonds between the atoms of some materials are stronger, thus needing more heat to raise the temperature

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### Re: Thermodynamics B/C

How much heat is required to change ice at -20°C to steam at 120°C? (in Joules)

Constants:
Latent heat of fusion of water = 334,000 J/kg°C
Latent heat of vaporization of water = 2258,000 J/kg°C
Specific heat of ice = 2108 J/kg°C
Specific heat of water = 4186 J/kg°C
Specific heat of steam = 1996 J/kg°C
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JoeyC
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### Re: Thermodynamics B/C

I'm sorry but how much does the ice weigh (or what is its mass)?
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UTF-8 U+6211 U+662F
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### Re: Thermodynamics B/C

CookiePie1 wrote:How much heat is required to change ice at -20°C to steam at 120°C? (in Joules)

Constants:
Latent heat of fusion of water = 334,000 J/kg°C Units are J/kg
Latent heat of vaporization of water = 2258,000 J/kg°C Units are J/kg
Specific heat of ice = 2108 J/kg°C
Specific heat of water = 4186 J/kg°C
Specific heat of steam = 1996 J/kg°C

UTF-8 U+6211 U+662F
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### Re: Thermodynamics B/C

I'll just go... Consider a gas with an rms speed of 500 m/s in a box 1 m x 5 m x 1 m at STP. What is its mass?

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### Re: Thermodynamics B/C

UTF-8 U+6211 U+662F wrote:I'll just go... Consider a gas with an rms speed of 500 m/s in a box 1 m x 5 m x 1 m at STP. What is its mass?

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UTF-8 U+6211 U+662F
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### Re: Thermodynamics B/C

Justin72835 wrote:
UTF-8 U+6211 U+662F wrote:I'll just go... Consider a gas with an rms speed of 500 m/s in a box 1 m x 5 m x 1 m at STP. What is its mass?

Pretty much right, probably off from my answer because of rounding

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### Re: Thermodynamics B/C

i guess ill restart this.
What is the point at which solid, liquid and gas phases are in equilibrium called?
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### Re: Thermodynamics B/C

Easy.
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### Re: Thermodynamics B/C

2.50 L of gas originally at 60 ̊C is warmed to 145 ̊C.

1. What is the new volume if the pressure remains constant?
2. Who named this law?

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### Re: Thermodynamics B/C

TheChiScientist wrote:Easy.
Triple Point

Yeah correct
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UTF-8 U+6211 U+662F
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### Re: Thermodynamics B/C

acidbeaker wrote:2.50 L of gas originally at 60 ̊C is warmed to 145 ̊C.

1. What is the new volume if the pressure remains constant?
2. Who named this law?

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### Re: Thermodynamics B/C

UTF-8 U+6211 U+662F wrote:
acidbeaker wrote:2.50 L of gas originally at 60 ̊C is warmed to 145 ̊C.

1. What is the new volume if the pressure remains constant?
2. Who named this law?