Question

How many calories are needed to convert 125 grams of water at 75.0 C to steam at 100.0 C?


How many calories are needed to convert 125 grams of water at 75.0 C to steam at 100.0 C? 

[Specific heats: ice = 0.495, water = 1.00 steam = 0.478 cal/g C] 

[water's heat of fusion = 80.0 cal/gram, water's heat of vaporization - 540.0 cal/gram] 

  • 3125 cal 

  • 3330 cal 

  • 6875 cal 

  • 13,125 cal 

  • 70,625 cal

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