A substance b has a normal boiling point of 893degc and its


A substance, B, has a normal boiling point of +89.3°C, and its enthalpy of vaporization of 260 J g-1.  How much energy is required to change 150 grams of B from a liquid at 89.3°C to a gas at 89.3°C? 

a.  5.15 x 102 joules

 b.  3.90 x 104 joules

c.  4.37 x 105 joules

d.  1.08 x 105 joules

e.  1.55 x 105 joules

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Chemistry: A substance b has a normal boiling point of 893degc and its
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