Answer to Question #108800 in General Chemistry for Ariana

Question

2. Predict the sign of ΔS in the system for each of the following processes:

a) CO2(s)→CO2(g) (sublimation of dry ice)
b) CaSO4(s)→CaO(s)+SO3(g)
c) N2(g)+3 H2(g)→2 NH3(g)
d) I2(s)→I2(aq) (dissolution of iodine in water)

Answer 1

a. positive

b. negative

c. negative

d. positive