Interacting gases - Thermodynamics question

In summary, two gases, helium and oxygen, with initial temperatures of 300K and 600K respectively, interact thermally. The initial thermal energy of each gas is 1900J and 3100J. The final thermal energy of each gas is 3300J and 1700J. The heat transferred between the two gases is 1400J and it goes from oxygen to helium. The final temperature is 500K.
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Homework Statement



2.0g of helium at an initial temperature of 300K interacts thermally with 8.0g of oxygen at an initial temperature of 600K .

What is the initial thermal energy of each gas?

What is the final thermal energy of each gas?

How much heat energy is transferred, and in which direction?

What is the final temperature?

Homework Equations



E=3/2 n R T monatomic
E=5/2 n R T diatomic
Q=mcdT

The Attempt at a Solution



What is the initial thermal energy of each gas? I got 1900, 3100 which was right.

What is the final thermal energy of each gas? I got 3300, 1700 which was wrong. I did [E1+E2/n1+n2]*E1=energy lost by E1. It is wrong though.

How much heat energy is transferred, and in which direction?

What is the final temperature?

I need the second one before I can try these

Thanks!


EDIT: Nevermind, figured it out! What I had to do was set the two energy equations equal to each other at T and set them also equal to a net energy of 5000.
 
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Final energy of each gas is 3300, 1700. Heat transferred is 1400J and it goes from oxygen to helium. Final temperature is 500K.
 

FAQ: Interacting gases - Thermodynamics question

What is the definition of interacting gases?

Interacting gases are a group of gases that are physically mixed together and can influence each other's properties through collisions and other interactions.

What is the significance of thermodynamics in the study of interacting gases?

Thermodynamics is the branch of science that deals with the relationship between heat, energy, and work. It is crucial in the study of interacting gases because it helps us understand the behavior of gases under different conditions and how they interact with each other.

What are the variables that affect the thermodynamic properties of interacting gases?

The variables that affect the thermodynamic properties of interacting gases include temperature, pressure, volume, and the number of moles of each gas present. These variables can change the behavior and characteristics of the gases, such as their density, temperature, and pressure.

What is the ideal gas law and how does it apply to interacting gases?

The ideal gas law, also known as the general gas equation, is a fundamental equation in thermodynamics that describes the behavior of a gas at a given temperature, pressure, and volume. It applies to interacting gases because it assumes that the gases do not interact with each other, and their behavior can be described by simple mathematical relationships.

What are some real-life applications of interacting gases?

Interacting gases have various real-life applications, such as in the chemical industry for the production of various substances, in refrigeration and air conditioning systems, and in the study of atmospheric gases and their impact on climate change. They are also used in gas sensors, gas turbines, and in the production of energy from natural gas.

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