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**preview**shows half of the first page. to view the full**2 pages of the document.**HOMEWORK 3 (Due on Monday, September 24, 2012) OCS1005, section 1&2

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Last Name:_Peterson__________ First Name:__Robert__________ Email:__rpete13@lsu.com_______

Question 1: How much heat would be required to heat 1 gram of pure liquid water from 10oC to 20oC?

-1 gram multiplied by 10 degrees in terms of calories

Answer: 10calories

Question 2: How much heat would be required to heat 10 grams of pure liquid water from 20oC to 25oC?

-10 grams multiplied by 5 degrees in terms of calories

-50 calories

Question 3: How much heat would be required to melt 3 grams of pure water ice at 0oC and convert it to 3

grams of pure liquid water at 0oC?

-melting=3 grams times 80 calories=240 calories

Answer: 240 calories

Question 4: How much heat would be required to evaporate 2 grams of pure liquid water?

-2 grams multiplies by 540 calories=1,080 calories

Answer: 200 calories

Question 5: How much heat would be required to melt 3 grams of pure water ice originally at 0oC and raise its

temperature to 10oC?

-melting=3 grams multiplied by 80 calories=240 calories

-temperature raise=3 grams multiplied by 10 degrees in terms of calories=30

Answer: 270 calories

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