What Drives Chemical Reactions D.2 Energy Cycles in Reactions (id: 13138993f)

本题目来源于试卷: What Drives Chemical Reactions D.2 Energy Cycles in Reactions，类别为 IB化学

[单选题]
Which expression gives the enthatbkid7* z meb)n47lp,.0 yvfplpy change, ΔH, for the 1uhwy(zm671onk8cy34hbvr o2 pw nr8production of hydrated copper (II) sulfatrpcy8m6yo24h8 rnbk3 w11wo (z vn hu7e from its anhydrous salt:

A. ΔH$_1$=ΔH$_2$-ΔH
B. ΔH=ΔH$_1$-ΔH$_2$
C. ΔH=ΔH$_1$+ΔH$_2$
D. ΔH$_2$=ΔH$_1$+ΔH


参考答案:  B


本题详细解析:
By applying Hess’s law, regardless of the route by which a chemical reaction proceeds, the enthalpy change will always have the same, provided that the initial and final states of the system are identical.

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