# Problem: You have a 100 g sample of water at standard pressure and 70 ◦C. How much energy is required to heat this sample to steam at 120◦C? A. 21 kJB. 239 kJC. 243 kJD. 17 kJE. 247 kJF. 185 kJ

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You have a 100 g sample of water at standard pressure and 70 C. How much energy is required to heat this sample to steam at 120C?

A. 21 kJ

B. 239 kJ

C. 243 kJ

D. 17 kJ

E. 247 kJ

F. 185 kJ

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Heating and Cooling Curves concept. You can view video lessons to learn Heating and Cooling Curves. Or if you need more Heating and Cooling Curves practice, you can also practice Heating and Cooling Curves practice problems.

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Our tutors rated the difficulty ofYou have a 100 g sample of water at standard pressure and 70...as medium difficulty.

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Our expert Chemistry tutor, Jules took 4 minutes and 53 seconds to solve this problem. You can follow their steps in the video explanation above.

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Based on our data, we think this problem is relevant for Professor Luong's class at University of Manitoba.