Edexcel Jun 2017 Paper 1 Q12

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12 Which is correct for chlorine? First ionization energy First electron affinity exothermic exothermic endothermic endothermic endothermic exothermic exothermic endothermic (Total for Question 12 = 1 mark) D O N O T W R I T E I N T H I S A R E A 13 In the solid state, phosphorus exists in three forms: black, red and white. These forms may be interconverted: P(s, white) (cid:111) P(s, black) (cid:168)H(cid:57) = 43.1 kJ mol1 P(s, white) (cid:111) P(s, red) (cid:168)H(cid:57) = 18.0 kJ mol1 From these data, it may be calculated that the standard enthalpy change for the conversion of black phosphorus into red phosphorus is A +61.1 kJ mol B +25.1 kJ mol C 25.1 kJ mol D 61.1 kJ mol 1 1 1 1 Use this space for rough working. Anything you write in this space will gain no credit. (Total for Question 13 = 1 mark) *P53491A0832* D O N O T W R I T E I N T H I S A R E A D O N O T W R I T E I N T H I S A R E A<br />

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