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TRABAJA SOBRE ESTE DOC
CALIBRACION DE CALORIMETRO
t (s) T (K) V (V) I (A) 0.00 27.70 300.85 9.9 3.132
30.00 27.80 300.95 9.9 3.13960.00 27.80 300.95 10.0 3.162
120.00 27.90 301.05 10.0 3.173150.00 28.30 301.45 9.9 3.096189.00 28.70 301.85 9.9 3.050210.00 29.20 302.35 9.9 3.076240.00 29.90 303.05 10.0 3.025270.00 30.60 303.75 10.0 3.061310.00 31.10 304.25 10.0 3.890340.00 31.70 304.85 10.0 3.951
ΔH hidratación MgSO4
masa (g) agua T inicial (agua) (˚C)221.32 26.7
masa (g) soluto T final (agua + soluto) (˚C)12.06 30.5
ΔH hidratación MgSO4.7H2O
masa (g) agua T inicial (agua) (˚C)221.85 27.0
masa (g) soluto T final (agua + soluto) (˚C)12.06 26.4
T (˚C)
masa calorimetro (g) masa (g) agua258.57 37.78 220.79
q(kJ)0.0000.9321.8973.8084.5985.707 usamos la formula.6.3957.2608.265
12.05913.433
donde m = masa del aguacp = calor especifico del agua = 4,184 J/gKC = capacidad calorifica del calorimetroTt = temperatura a determinado tiempo
SE tiene esntonces que la capacidad calorifica delcalorimetro es:
C = 0,41 Kj
0.92422694capacidad calorifica del 0.415calorimetro Kj
𝐸_𝑐𝑒𝑑𝑖𝑑𝑎=𝐸_𝑎𝑏𝑠𝑜𝑟𝑏𝑖𝑑𝑎𝑉𝐼𝑡=(𝑚𝑐_𝑝+𝐶)(𝑇_𝑡−𝑇_0)
temperatura inicial (˚C)27.7
x = Tt-To y = q 1.0 0.717228 1.1 1.481436 1.1 2.229201 1.2 3.012768 1.6 3.79674 2.0 4.572108 2.5 5.335995 3.2 6.096144 3.9 6.87258 4.4 7.62552 5.0 8.432127
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0
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9f(x) = 1.69035429783951 x + 0.412025541666667R² = 0.927182792176836
𝑉𝐼𝑡=(𝑚𝑐_𝑝+𝐶)(𝑇_𝑡−𝑇_0)
0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 0
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9f(x) = 1.69035429783951 x + 0.412025541666667R² = 0.927182792176836
t (s) T (K) V (V) 0.00 27.70 300.85 9.9
30.00 27.80 300.95 9.960.00 27.80 300.95 10.0
120.00 27.90 301.05 10.0150.00 28.30 301.45 9.9189.00 28.70 301.85 9.9210.00 29.20 302.35 9.9240.00 29.90 303.05 10.0270.00 30.60 303.75 10.0310.00 31.10 304.25 10.0340.00 31.70 304.85 10.0
10.0 0.0522232967867092
masa (g) agua220.79
Calor especifico H2O
t (s) T(K) Voltaje (V) Corriente0 300.85 9.9 3.132
30 300.95 9.9 3.13960 300.95 10.0 3.162
120 301.05 10.0 3.173150 301.45 9.9 3.096189 301.85 9.9 3.050210 302.35 9.9 3.076240 303.05 10.0 3.025
T (˚C)
270 303.75 10.0 3.061310 304.25 10.0 3.890340 304.85 10.0 3.951
I (A) q(kJ)3.132 0.003.139 0.933.162 1.903.173 3.813.096 4.603.050 5.713.076 6.403.025 7.263.061 8.263.890 12.063.951 13.43
3.250 0.334851418881976
masa (kg) agua VI (kJ) 0.03235680.22079 mcp 0.92422694
kJ/kg. K Capacidad calo 0.77876244.186
0.00 50.00 100.00 150.00 200.00 250.00 300.00 350.00 400.00298.00
299.00
300.00
301.00
302.00
303.00
304.00
305.00
306.00
f(x) = 0.0121322620082399 x + 300.188017200563R² = 0.892861257533701
tiempo (s)
Tem
pera
tura
(K)
𝑉𝐼𝑡=(𝑚𝑐𝑝+𝐶)(𝑇𝑡−𝑇0)𝑇𝑡= "𝑉𝐼 " /(( + )𝑚𝑐𝑝 𝐶 ) 𝑡+ 0𝑇
𝑉𝐼" " /(( + ))𝑚𝑐𝑝 𝐶 𝑠=𝑝𝑒𝑛𝑑𝑖𝑒𝑛𝑡𝑒
la s es segundos
0.00 50.00 100.00 150.00 200.00 250.00 300.00 350.00 400.00298.00
299.00
300.00
301.00
302.00
303.00
304.00
305.00
306.00
f(x) = 0.0121322620082399 x + 300.188017200563R² = 0.892861257533701
tiempo (s)
Tem
pera
tura
(K)
𝑉𝐼𝑡=(𝑚𝑐𝑝+𝐶)(𝑇𝑡−𝑇0)𝑇𝑡= "𝑉𝐼 " /(( + )𝑚𝑐𝑝 𝐶 ) 𝑡+ 0𝑇
𝑉𝐼" " /(( + ))𝑚𝑐𝑝 𝐶 𝑠=𝑝𝑒𝑛𝑑𝑖𝑒𝑛𝑡𝑒
