Question

# Data: (1) As(s) + 3/2Cl2(g) -> AsCl3(g)   ΔH = -261.5 kJ (2) As(s) + 3/2Cl2(g) ->...

Data:

(1) As(s) + 3/2Cl2(g) -> AsCl3(g)   ΔH = -261.5 kJ

(2) As(s) + 3/2Cl2(g) -> AsCl3(l)   ΔH = -305.1 kJ

On the basis of the above data, which of the following statements is false?

1. ΔH for the reaction AsCl3(l) -> AsCl3(g) is 43.6 kJ

2. Reaction (2) is the formation reaction for AsCl3(g)

3. The energy content in AsCl3(l) is lower than AsCl3(g)

4. Reaction (1) is exothermic

5. The reverse of reaction (2) is endothermic

(2) is false statement.

It is the formation reaction for AsCl3(l).

So it is false

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