| Date | May 2014 | Marks available | 1 | Reference code | 14M.1.hl.TZ2.16 |
| Level | HL | Paper | 1 | Time zone | TZ2 |
| Command term | Question number | 16 | Adapted from | N/A |
Question
Which equation represents the lattice enthalpy of calcium chloride?
A. \({\text{CaCl(s)}} \to {\text{C}}{{\text{a}}^ + }{\text{(g)}} + {\text{C}}{{\text{l}}^ - }{\text{(g)}}\)
B. \({\text{CaC}}{{\text{l}}_2}{\text{(s)}} \to {\text{C}}{{\text{a}}^{{\text{2}} + }}{\text{(g)}} + {\text{2C}}{{\text{l}}^ - }{\text{(g)}}\)
C. \({\text{CaC}}{{\text{l}}_2}{\text{(g)}} \to {\text{C}}{{\text{a}}^{{\text{2}} + }}{\text{(g)}} + {\text{2C}}{{\text{l}}^ - }{\text{(g)}}\)
D. \({\text{CaC}}{{\text{l}}_2}{\text{(s)}} \to {\text{C}}{{\text{a}}^{{\text{2}} + }}{\text{(aq)}} + {\text{2C}}{{\text{l}}^ - }{\text{(aq)}}\)
Markscheme
B
Examiners report
[N/A]
