If oxygen at 142 kPa and 9mL is allowed to expand at a constant temperature until its pressure is 90 kPa, how much will the volume become?

Firstly, the water in the dams hold gravitational potential energy as they are above ground level. the gravitational potential energy is then transferred to kinetic energy as it falls, spinning the turbinethe turbine then spins the generator, which is a large magnet surrounded by metal coils. by doing this, the generator generates electricity. in this action, the energy transfer taken place is kinetic to electric energy

Answer( precipitate );

It is a body of knowledge gained  using  inquiry and experimentation