Answer:
[tex]k=1.23J[/tex]
Explanation:
1. The equation to calculate the kinetic energy is:
[tex]k=\frac{mv^{2} }{2}[/tex] (Eq.1)
where, m=mass, v=velocity, k=kinetic energy
2. Find the mass of one mole of water, [tex]H_{2}O[/tex]:
Atomic weight of H = 1[tex]\frac{g}{mol}[/tex]
Atomic weight of O = 16[tex]\frac{g}{mol}[/tex]
Molecular weight of [tex]H_{2}O[/tex] = (2*1) + 16
Molecular weight of [tex]H_{2}O[/tex] = 18[tex]\frac{g}{mol}[/tex]
3. Convert the mass of [tex]H_{2}O[/tex] from g to Kg:
[tex]18g*\frac{1Kg}{1000g}=0.018Kg[/tex]
3. Replace quantities in Eq.1:
[tex]k=\frac{0.018g*(11.7\frac{m}{s})^{2}}{2}[/tex]
[tex]k=1.23J[/tex]
