It is difficult to extinguish a fire on a crude oil tanker, because each liter o

Question

It is difficult to extinguish a fire on a crude oil tanker, because each liter of crude oil releases a large amount of energy, 2.80 times 10^7 J, when burned. To illustrate this difficulty, calculate the number of liters of water that must be expended to absorb the energy released by burning 0.95 L of crude oil. if the water has its temperature raised from 20.0degree C to 100degree C. it boils, and the resulting steam is raised to 300degree C. The latent heat of vaporization for water is L_v = 2256 kJ/kg. Grade Summary Submissions Attempts remaining: 9 (10% per attempt) detailed view Feedback: 1 for a 0% deduction You may have lost the volume of oil given in the problem.

Explanation / Answer

Mass of the water is,

M=[Q]/[cw*dTw+L+cs*dTs]

= [2.8*10^7]/[(4186)(80)+(2256×10^3)+(1520)(200)]

=9.672 kg

Volume:

V=m/density

= 9.672/1000

= 9.672 ×10^-3 m^3

= 9.672×10^-3(0.95 L/10^-3 m^3)

=9.1884 L

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