What Drives Chemical Reactions D.2 Energy Cycles in Reactions (id: f0f7f5098)

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]
Refer to the Born-Hab uc94.-m;bsex 5 hr-o scsrlv;er cycle for potxbnsvx ;(sb1zd egm61 +4am; dassium chloride below:

What is the correct name for the enthalpy changes labeled x, y, and z?

A. $x$ is Atomisation of Cl;y is Ionisation of K ;z is Electron affinity of Cl
B. $x$ is Atomisation of Cl;y is Electron affinity of K;z is Ionisation of Cl
C. $x$ is Atomisation of $Cl_2$;y is Ionisation of K;z is Electron affinity of Cl
D. $x$ is Atomisation of $Cl_2$;y is Electron affinity of K;z is Ionisation of Cl


参考答案:  A


本题详细解析:
Atomisation is defined as the formation of one mole of gaseous atoms.Iq*tvgy0t-:kbcb )bqy),p n6 xonization is the process in which one mole of electrons is removed from one mole of gaseous atoms/ions.Electron affini) bt)6 :vqyqb-,x0k g*pcntbyty is the addition of one mole of electrons to gaseous atoms/ions.

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