What volume of alcohol will have same mass as 4.2m-3 of petrol?
Density of alcohol = 8.4 x 10^2 kgm-3, density of petrol =7.2x10^2 kgm-3
Mp = ep x Vp
Mp = 7.2 x 102 x 4.2 = 3024
VA = \(\frac{M}{e_A}\)
VA = \(\frac{3024}{8.4 \times 10^2}\)
VA = 3.6
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