The molar heat of vaporization of water is 40.7 kl/mol. how much heat must be absorbed to convert 50.0 grams of liquid water at 100 degrees celsius?
a) 1.46 x 10kl
b) 1.13 x 10^2 kl
c) 2.04 x 10^3 kl
d) 3.66 x 10^4 kl

Using this reversible reaction, answer the questions below: n2o4 2no2 (colorless) (reddish-brown) -as the temperature increased, what happened to the n2o4 concentration? -was the formation of reactants or products favored by the addition of heat? -which reaction is exothermic? right to left or left to right? -if the change of enthalpy of this reaction when proceeding left to right is 14 kcal, which chemical equation is correct? n2o4 2no2 + 14 kcal n2o4 2no2, hr = +14 kcal n2o4 + 14 kcal 2no2 n2o4 2no2, hr = -14 kcal