- #1
pdonovan
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Homework Statement
Interstellar space, far from any stars, is filled with a very low density of hydrogen atoms (H, not ). The number density is about and the temperature is about 3 K.
What is the edge length L of an LxLxL cube of gas with 1.0 J of thermal energy?
I found:
P = 4.14x10-17Pa
Vrms = 273m/s
Homework Equations
Eth = 3NKbT = 3nRT = 3pV
The Attempt at a Solution
Eth = 1J
Eth = 3pV = 3(4.14x10-17)V
--> V = 8.05x1015
Is this the correct answer or is my math wrong somewhere? Thank you for any input!