Why are concentration units of mole fraction used in some colligative properties calculations?
a. mole fraction expresses concentration more accurately than molarity.
b. mole fraction does not depend on the chemical identity of the solute.
c. mole fraction is easier to measure in the laboratory than molarity or molality.
d. mole fraction is not affected by changes in temperature.

The answer is d. mole fraction is not affected by changes in temperature. The colligative properties is only depend on the number of the solute in the solvent.

Those are different gas lawshere is a brief description of themcharles's law states that volume and temperature are directly proportional to each other as long as pressure is held constant.  boyle's law asserts that pressure and volume are inversely proportional to each other at fixed temperature.gay-lussac's law introduces a direct proportionality between temperature and pressure as long as it is at a constant volume.    source:

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