A.-386kJ·mol-1 | B.+386kJ·mol-1 |
C.-746kJ·mol-1 | D.+746kJ·mol-1 |
A.△H1=△H2=△H3=△H4 | B.△H1+△H2=△H3+△H4 |
C.△H1+△H2+△H3=△H4 | D.△H1=△H2+△H3+△H4 |
A.+ 488.3 kJ/mol | B.-488.3 kJ/mol |
C.-244.15 kJ/mol | D.+ 244.15 kJ/mol |
A.+882kJ·mol-1 | B.+441kJ·mol-1 | C.-882kJ·mol-1 | D.-441kJ·mol-1 |
A.Na+(g)+Cl-(g)―→NaCl(s);△Q |
B.Na(s)+Cl2(g)―→NaCl(s);△Q1 |
C.Na(s)―→Na(g);△Q2 |
D.Na(g)-e-―→Na+(g);△Q3 |
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