How much heat is needed to vaporize 10 point 0 0 grams of water at 100 point 0 times degree C ? The latent heat of vaporization of water is 2 comma 259 J/g
Answer
A
22 point 5 9 cap j
B
2 comma 269 cap j
C
1 comma 000 cap j
D
22 comma 590 cap j
Explanation
Use the heat-of-vaporization equation, Q = mLv. For 10.00 g of water, Q = (10.00 g)(2,259 J/g) = 22,590 J. Therefore, the correct choice is D, 22,590 J.
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