Apiston containing 0.1 moles of helium initially at 200 psig and 25°C is isother

ID: 1815914 • Letter: A

Question

Apiston containing 0.1 moles of helium initially at 200 psig and 25°C is isothermally expanding

to afinal pressure of 1 atmosphere.

Based on this information, answer the following:

a.)Sketch what the apparatus described in the problem looks like inyour head.

b.)What does the term isothermal mean in this context? Why do you needto specify the

process is isothermal? (i.e. what would be happening to the gastemperature if you didn’t

specify isothermality?) How would you go about making itisothermal?

c.)If the gas wants to change temperature as it is expanding, and youare preventing this

fromhappening by imposing the isothermal constraint, what else must behappening

during this process? How might you go about quantifyingthis?

d.) Sketch a P-V diagram showing what you thinkthis process looks like.

PLEASE!!

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