3 years ago

Calculate the number of kilojoules to warm 125 g of iron from 23.5 °C to 78.0 °C.

Chemistry

1 answer:

Pie3 years ago

5 0

3024.75 Joules needed to warm iron

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The enthalpy for given reaction is 232 kilo Joules.

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$C_2H_2(g) + \frac{5}{2}O_2(g)\rightarrow 2CO_2(g) + H_2O(l), \Delta H^o_{1} = -1,123 kJ$ ...[1]

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$\Delta H^o_{4}=2\times \Delta H^o_{2}+\Delta H^o_{3} - \Delta H^o_{1}$

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The enthalpy for given reaction is 232 kilo Joules.

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