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OpenStudy (anonymous):
How much heat is required to vaporize 1.5 kg of liquid water at its boiling point (delta Hv = 2.26 × 10^6 J/kg)? A. 6.6 * 10^-7 J B. -1.5 * 10^6 J C. 1.5 * 10^6 J D. 3.4 * 10^6 J
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OpenStudy (michele_laino):
here we have to multiply the hentalpy change Hv, by the mass of the object
OpenStudy (anonymous):
so 2.26*10^6 *1.5? and we get 3390000 and so our answer is choice D?
OpenStudy (michele_laino):
oops.. enthalpy*
OpenStudy (michele_laino):
yes! correct!
OpenStudy (anonymous):
yay!! thank you!!
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OpenStudy (michele_laino):
:)
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