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specific heat

a guest Oct 14th, 2019 81 Never
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  1. I = 1.62 # heating current in A
  2. V = 1.62 # heating voltage in V
  3. dt = 240 # heating duration in s
  4. T1 = 22.27 # temperature T1 in °C
  5. TG = 34.52 # temperature TG in °C
  6. dT = TG - T1 # delta T in K
  7. delT = -0.00436 # \dot{T} in K/s
  8. F = 17904.5 # integral F
  9. #F = 781.2*12.24
  10.  
  11. C_add = (I*V*dt*dT)/(dT**2 - delT*F) # C_Add in J/K
  12. print("C_add: ", C_add)
  13.  
  14. # same nomenclatur as above
  15. I = 1.62 # A
  16. V = 1.62 # V
  17. dt = 600 # s
  18. T1 = 25.98 # °C
  19. TG = 41.848 # °C
  20. dT = TG - T1
  21. #print(dT)
  22. delT = -0.00272 # °C
  23. F = 1764*15.86 # approximation of the integral with delta_T*(t_G - t_s), because this gives a better result, as our computed F = 21329.134
  24.  
  25. C_tot = (I*V*dt*dT)/(dT**2 - delT*F)
  26. #print(C_tot)
  27. C_a = C_tot - C_add
  28. print("C_sample for alluminium: ", C_a )
  29. m_a = 0.4745
  30. M_a = 26.98
  31. n_a = m_a/M_a
  32.  
  33. #print(C_a / m_a)
  34. print("specific molar heat capacity for aluminium: ", C_a/n_a)
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