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 ent;m e2fln6 ozs-0;q :euri8o vo c6)dlnhalnn7zs :qv7 i,0 bxrj3mzn-*akpy change, ΔH, for the production of hydrated copper (II) sulfate from its ana k73j*n,m7-xrizz nns :bq0vhydrous 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.

微信扫一扫，分享更方便