What is heat change in kJ when 50.0 grams of liquid diethyl ether (C2H5OC2H5) is vaporized to gas at its boiling point of 11.85oC. Diethyl ether has a heat of vaporization of 27.5 kJ/mol.

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.