|May4-11, 10:31 AM||#1|
1. The problem statement, all variables and given/known data
A balloon has 0.310 mol of polyatomics gas, Initial volume 7500cm³ and temp 29 degrees C, gas first expands isobarically until volume double. Then expands adiabatiacally until temp returns to initial value, assume gas is ideal gas, C_p = 33.26 J/mol*K, gamma = 4/3.
What is the final volume V?
2. Relevant equations
I think I have to use
PV = nRT
T_1V_1^(gamma-1) = T_2V_2^(gamma-1)
3. The attempt at a solution
I've tried to find the temperature after it expands isobarically and use that as the T1 value, I think this is the only trouble I'm facing here, after that I can find V_2 and add all volumes together, please guide me on how to find T after the isobaric expansion.
|May5-11, 10:53 AM||#2|
|May5-11, 11:32 AM||#3|
I've actually solved it, thank you anyway
|expansion, pv=nrt, t1v1=t2v2, thermodyanmics|
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