Thermodynamics B/C

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photolithoautotroph
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Re: Thermodynamics B/C

Post by photolithoautotroph »

MattChina wrote:
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?
1) 1.99 L
2) Jacques Charles if you mean who the law was named after
Shouldnt the gas expand?
It should expand. I get 3.14L but there is technically only one significant figure because of 60C. So it would be 3L
Last edited by photolithoautotroph on April 30th, 2018, 3:48 am, edited 1 time in total.
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Re: Thermodynamics B/C

Post by UTF-8 U+6211 U+662F »

MattChina wrote:
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?
1) 1.99 L
2) Jacques Charles if you mean who the law was named after
Shouldnt the gas expand?
1) 3.14 L
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Re: Thermodynamics B/C

Post by UTF-8 U+6211 U+662F »

Just going to ask the next question..

5 moles of a monatomic ideal gas isobarically and adiabatically contract by 1.5 L, changing from 100 degrees Celsius to 80 degrees Celsius. Find the final volume and pressure of the gas.
Last edited by UTF-8 U+6211 U+662F on May 5th, 2018, 5:58 pm, edited 1 time in total.
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Re: Thermodynamics B/C

Post by MattChina »

UTF-8 U+6211 U+662F wrote:Just going to ask the next question..

5 moles of a monatomic ideal gas isobarically and adiabatically expand by 1.5 L, changing from 100 degrees Celsius to 80 degrees Celsius. Find the final volume and pressure of the gas.
554.3 bars and 26.48 liters
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Re: Thermodynamics B/C

Post by UTF-8 U+6211 U+662F »

MattChina wrote:
UTF-8 U+6211 U+662F wrote:Just going to ask the next question..

5 moles of a monatomic ideal gas isobarically and adiabatically expand by 1.5 L, changing from 100 degrees Celsius to 80 degrees Celsius. Find the final volume and pressure of the gas.
554.3 bars and 26.48 liters
Sorry, you're right, it should be contract, not expand :|
Edited the original post to clarify.

Your turn!
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Re: Thermodynamics B/C

Post by MattChina »

What is the heat energy required to completely vaporize 110g of water beginning at 0°C? (The heat capacity of water is 4.2 J/g⋅K and the ΔH
vaporization of water is 2260 kJ/kg
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Re: Thermodynamics B/C

Post by UTF-8 U+6211 U+662F »

MattChina wrote:What is the heat energy required to completely vaporize 110g of water beginning at 0°C? (The heat capacity of water is 4.2 J/g⋅K and the ΔH
vaporization of water is 2260 kJ/kg
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Re: Thermodynamics B/C

Post by MattChina »

UTF-8 U+6211 U+662F wrote:
MattChina wrote:What is the heat energy required to completely vaporize 110g of water beginning at 0°C? (The heat capacity of water is 4.2 J/g⋅K and the ΔH
vaporization of water is 2260 kJ/kg
Yep, sounds about right
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Re: Thermodynamics B/C

Post by UTF-8 U+6211 U+662F »

All right! When heat flows through a wall, what kind of process is that?
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Re: Thermodynamics B/C

Post by MattChina »

UTF-8 U+6211 U+662F wrote:All right! When heat flows through a wall, what kind of process is that?
a flow process?
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