You need an additional point of data here: the enthalpy of fusion, or conversely the enthalpy of melting (they differ only by their sign). For water (or ice) that value is gotten from sources such as the internet
<span>ΔH°(fus) = 6.01 kJ/mole </span>
<span>Since you have 35 000g, how many moles do you have? </span>
<span>Moles H2O = 35000 g/(18.015 g/mole) = 1942.8 moles</span>
<span>So, take that ΔH°(fus) in kJ/mole, multiply by the number of moles, and there ya go!
</span>
6.01 x 1942.8 = 11,676 kJ of energy is released
Hope I helped!! xx
Velocity = 90 km/h = 25 m/s
Drag coefficient, Cd = 2D/Density of air*Frontal area*sqr. velocity
Substituting,
Cd = (2*230)/(1.164*1.25*1.65*25^2) = 0.3066
Answer: D allowing businesses to release industrial wastes into rivers
Protons have a positive charge. Electrons have a negative charge. Neutrons have no (neutral) charge.
Answer:
The answer is C she didn't mark C so its your best best of trying.Good Luck!
