Answer:
Vapor pressure for solution is 22.4 Torr
Explanation:
P° → Vapor pressure of pure solvent
P' → Vapor pressure of solution
Formula for lowering vapor pressure is: P° - P' = P° . Xm
Xm is the mole fraction. Let's determine it:
0.220 mol of solute + 3.70 mol of water = 3.92 total moles
Mole fraction for solute → 0.220 / 3.92 = 0.056
23.8 Torr - P' = 23.8 Torr . 0.056
P' = - ( 23.8 Torr . 0.056 - 23.8 Torr ) → 22.4 Torr
The best and most correct answer among the choices provided by your question is the third choice or letter C "a low heat capacity because a small amount of thermal energy will cause a large increase in temperature.<span> "
Heat capacity is </span><span>the number of heat units needed to raise the temperature of a body by one degree.</span>
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if all sides are unequal it is scalene and if one angle adds up to 90 while the rest are different youve proven it.
