Answer to Question #297133 in General Chemistry for Barbara Cavalcanti

Question

Q.6

Liquid bromine (Br₂) boils at 58.8^oC and has a standard enthalpy of vaporization equal to 29.6 kJ/mol. Calculate the entropy change when 159.8 g of bromine vaporizes. Provide an answer correct to 3 significant figures.

Answer 1

Molar mass of bromine liquid $=159.8g/mol$

Number of moles$=1mole$

Entropy change $=1×29.6$

$=29.6kJ$