Calculate the kinetic energy (in joules) of a mole of water molecules traveling at 11.7 m/s.

Explanation:

1. The equation to calculate the kinetic energy is:

(Eq.1)

where, m=mass, v=velocity, k=kinetic energy

2. Find the mass of one mole of water, :

Atomic weight of H = 1

Atomic weight of O = 16

Molecular weight of = (2*1) + 16

Molecular weight of = 18

3. Convert the mass of from g to Kg:

3. Replace quantities in Eq.1:

answer

fusion: the energy source of stars. the energy released from the collapse of the gas into a protostar causes the center of the protostar to become extremely hot. when the core is hot enough, nuclear fusion commences. fusion is the process where two hydrogen atoms combine to form a helium atom, releasing energy.

hope it

there are two significant figures.