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a) Predict the sign of DeltaS for the re...

a) Predict the sign of `DeltaS` for the reaction, `NH_3(g)+HCI(g)rightarrowNH_4CI(s)`
b) The reaction between gaseous hydrogen and chlorine is
`H_2(g)+CI_2(g)rightarrow2HCI(g), Delta_rH=-1840 kJ`
i) What is the enthalpy of formation of HCI?
ii) How much heat will be liberated at 298 K and 1 atm for the formation of 365 g of HCI?

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