General Chemistry 1: Enthalpy
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4 Fe(s) + 3O##_2##(g) ##\longrightarrow## 2 Fe##_2##O##_3##(s) ##\triangle##H = -1640 kJ
How many kJ of heat can be produced from 50.0g iron?
How many kJ of heat can be produced from 50.0g iron?
C##_2##H##_4## + 6 F##_2## ##\longrightarrow## 2 CF##_4## + 4 HF
Find the ##\triangle##H of the above reaction given:
H##_2## + F##_2## ##\longrightarrow## 2 HF ##\triangle##H = -537 kJ
2 C + 2 H##_2## ##\longrightarrow## C##_2##H##_4## ##\triangle##H = +52 kJ
CF##_4## ##\longrightarrow## C + 2 F##_2## ##\triangle##H = +680 kJ
Find the ##\triangle##H of the above reaction given:
H##_2## + F##_2## ##\longrightarrow## 2 HF ##\triangle##H = -537 kJ
2 C + 2 H##_2## ##\longrightarrow## C##_2##H##_4## ##\triangle##H = +52 kJ
CF##_4## ##\longrightarrow## C + 2 F##_2## ##\triangle##H = +680 kJ
A 25.0 g piece of metal is heated to 200.0##^\circ## C and placed in 30.0 g of 25.0##^\circ## C water. The temperature of the water rises to 41.0##^\circ## C. What is the specific heat of the metal?
Find the enthalpy of reaction, ##\triangle##H##_{rxn}## , for the combustion of sugar (there is usually a table of enthalpies of formation in the back of chemistry textbooks)
C##_6##H##_{12}##O##_6## (s) + 6 O##_2## (g) ##\longrightarrow## 6 CO##_2## (g) + 6 H##_2##O (l)
C##_6##H##_{12}##O##_6## (s) + 6 O##_2## (g) ##\longrightarrow## 6 CO##_2## (g) + 6 H##_2##O (l)