Solving Transition of a Gas: Change in Internal Energy & Heat Added/Required

In summary, the conversation is about a problem involving an ideal diatomic gas undergoing a transition from a to c along the diagonal path. The questions asked include the change in internal energy of the gas, the amount of energy added as heat, and the heat required if the gas goes from a to c along the indirect path abc. The equations mentioned include the ideal gas law and the first law of thermodynamics. The person is seeking help to understand and solve the problem.
  • #1
sciontc03
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Homework Statement


I need help with this problem please. My partner and I have stared at this problem and keep going in circles and can't seem to figure out how to work this problem. Please help!

One mole of an ideal diatomic gas undergoes a transition from a to c along the diagonal path in the figure attached.



During the transition, what is the change in internal energy of the gas?

How much energy is added to the gas as heat?

How much heat is required if the gas goes from a to c along the indirect path abc?


Homework Equations



pv=nrt
E=Q-W

The Attempt at a Solution


I don't even know where to begin. Please help.
 

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  • #2
can anybody possibly help me understand this?
 

1. What is the transition of a gas?

The transition of a gas refers to the change in physical state from a gas to either a liquid or solid. This transition is often caused by changes in temperature or pressure.

2. How is internal energy related to the transition of a gas?

Internal energy is the total energy stored within a substance and is directly related to the temperature of the gas. When a gas undergoes a transition, its internal energy also changes. For example, when a gas condenses into a liquid, its internal energy decreases.

3. What is heat added/required during the transition of a gas?

Heat added or required during the transition of a gas refers to the amount of thermal energy needed to cause the gas to undergo a change in state. This heat energy is used to break or form bonds between gas molecules, resulting in a change in internal energy and a change in physical state.

4. How is heat added/required calculated during the transition of a gas?

The amount of heat added or required during the transition of a gas can be calculated using the formula Q = mCΔT, where Q is the heat added or required, m is the mass of the gas, C is the specific heat of the gas, and ΔT is the change in temperature.

5. Can the transition of a gas occur without any heat added or required?

Yes, the transition of a gas can occur without any heat added or required if the gas is at its critical point. At this point, the gas cannot be further compressed into a liquid and any heat added will not cause a change in state. This is known as a critical transition.

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