The Ruby fluorescence scale measures this quantity in a device by exciting electrons within its transparent chamber. Post-perovskite is a phase with high values of this quantity in a type of magnesium silicate. In 2023, a paper claiming to have observed superconductivity at 294 Kelvin in nitrogen-doped lutetium hydride in an environment where this quantity (15[1])is high (15[1]-5[1])was retracted (15[1]-5[1])due to allegations of faking data (15[2])and self-plagiarism (-5[2])by its primary author, Rangas Dias. D-DIA and (*) diamond (10[1])anvil cells (10[2])can be used (10[1])to subject (10[1])materials to high (10[1])values of this quantity. (10[1])Enthalpy (-5[1])is defined (10[1])as internal (10[1])energy plus volume (10[2])times this quantity. (10[2])This quantity is proportional to temperature over volume according to the ideal gas (10[1])law. Constant in isobaric processes, (10[1])for 10 points, name this quantity with SI unit Pascal, defined as force per area. (10[3])■END■ (10[2])