Which statement best explains why different gases effuse at different rates? At a given pressure, gas particles with smaller masses move faster.
At a given pressure, gas particles with smaller masses move slower.
At a given temperature, gas particles with smaller masses move faster.
At a given temperature, gas particles with smaller masses move slower.

In which block of the periodic table is uranium (u) found? s blockd blockp blockf block

110 g of water (specific heat = 4.184 j/g c) and 100 g of a metal sample (specific heat = 0.397 j/g c) are heated from 25 degrees c to 75 degrees c. which substance required more thermal energy?

Which statement is true according to the kinetic theory? a. molecules of different gases with the same mass and temperature always have the same average density. b. molecules of different gases with the same mass and temperature always have the same average volume. c. molecules of different gases with the same mass and temperature always have the same pressure. d. molecules of different gases with the same mass and temperature always have the same molecular mass. e. molecules of different gases with the same mass and temperature always have the same average kinetic energy.