The standard enthalpy of formation of a free element in its standard state is 0.0 kJ.
True or false.

Ineed this asap part i: scientific method what is the difference between science and pseudoscience? what is the scientific method?

Adeuteron, 21h, is the nucleus of a hydrogen isotope and consists of one proton and one neutron. the plasma of deuterons in a nuclear fusion reactor must be heated to about 3.02×108 k . what is the rms speed of the deuterons? express your answer using two significant figures.

What happens to the average kinetic energy of a gas when the particles of the gas collide against each other at a constant temperature and volume? explain your answer.