What is the difference between a mass fraction and a mole fraction?
What will be an ideal response?
A mass fraction is the fraction of the mass of a substance in a mixture to the
total mass of the mixture. The mole fraction is the fraction of the moles of a
substance in a mixture to the total moles of the mixture
You might also like to view...
A car with good tires on a dry road can slow down at a steady rate of about 5.0 m/s2 when braking. If a car is initially traveling at 55 mi/h (a) how much time does it take the car to stop? (b) what is its stopping distance?
What will be an ideal response?
The ideal gas in a sealed container has its absolute temperature quadrupled. What happens to the average time between molecular collisions in the gas?
a. It stays the same. b. It decreases to half its original value. c. It decreases but not to half its original value. d. It increases.
Most extrasolar Neptunes and Jupiters found to date have
A) orbits very close to their parent stars, making them hot Neptunes and hot Jupiters. B) orbits that are more eccentric than those of planets in our solar system, with eccentricities greater than 0.1 C) orbits that are less eccentric than those of planets in our solar system, with eccentricities less than 0.01. D) much larger orbits than the jovian planets in our solar system.
When a 60-W lightbulb is operating on a 120-V household line, what current does it draw?
A) 0.5 A B) 120 J/C C) 2.0 A D) 1.414 A E) 40 J/C