The heat required to vaporize 650 grams of liquid with a heat of vaporization of 723 joules/grams is 470,000 J ( answer E)
<u><em>calculation</em></u>
Heat (Q) = m Hv where,
m(mass)= 650 g
HV( heat of vaporization) = 723 J/g
heat is therefore = 650 g x 723 J/g =469950 J
round off 469950 j into nearest 10,000 = 470,000 J ( answer E)
Answer:
Its helium
Explanation: Because teh effective nuclear charge holds the valence ectrons clos to the nuclues. the Atomic radius would decrease as you move from the led=ft and right of the perodic table
Yeah, it increases the surface tension !!!
I believe it's 144.12g out of 342.34g total hope this helps