Topics: Nitrogen, Carbon dioxide, Oxygen Pages: 2 (471 words) Published: May 8, 2013

Id: 1785369

Name of the experiment: Adiabatic coefficient of
gases- Flammersefeld oscillator

Section: Friday morning

Date: 26/04/2013

Group No:9

Group member: Ezgi OĞUZ

Assistant: MELIS KESIK

Calculations:
Given values:
m = 4,59•10-3 kg; V = 1,14•10-3 m3; PL = 99,56•103 kg/ms2; r= 5,95•10-3 m

tavg(gas) = (t1 + t2 + t3 + t4 + t5)/5 (sec);
tavg(CO2) = (106 + 107 + 106+ 110 + 112)/5 = 106,8 (sec.); tavg(Argon) = (105+ 100 + 97 + 100 + 99)/5 = 100,2 (sec.); tavg(N2) = (110+ 109 + 109+ 109 + 109)/5 = 109.5(sec.);

T = tavg(gas)/300;
T = tavg(CO2) /300 = 106.8/300 = 0,356;
T = tavg(Argon) /300 = 100,2/300 = 0,334;
T = tavg(N2)/300 = 109.5/300 = 0,365;

P = PL + mg/πr2 = 99,56•103 kg/ms2 + (4,59•10-3 kg × 9,8 ms2 )/(3,14×(5,95•10-3 m)2) = = 99965 kg/ms2;

Adiabatic coefficient of gases (γ): Given γ(gas) = (4mV) / (T2Pr4); γ(CO2) = (4×4,59•10-3 ×1,14•10-3 ) / (0,3562 × 99965 ×(5,95•10-3 )4) = 1,318 ; γ(Argon) = (4×4,59•10-3 ×1,14•10-3 ) / (0,3342 × 99965 ×(5,95•10-3 )4) = 1,517 ; γ(N2) = (4×4,59•10-3 ×1,14•10-3 ) / (0,3652 × 99965 ×(5,95•10-3 )4) = 1.254;