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Science Clinic => Chemistry => Topic started by: notis on Jun 7, 2021

Title: If the heat of vaporization for water is 540 cal/g, how many kilocalories are released when 5.00 g ...
Post by: notis on Jun 7, 2021

Question 1

The heat of vaporization for water is 540 cal/g.  How many kilocalories are needed to change 22 g of liquid water to steam at
◦ 12000 kcal
◦ 1.8 kcal
◦ 12 kcal
◦ 25 kcal
◦ 540 kcal

Question 2

If the heat of vaporization for water is 540 cal/g, how many kilocalories are released when 5.00 g of steam is converted to liquid at
◦ 110 kcal
◦ 5.4 kcal
◦ 5.0 kcal
◦ 540 kcal
◦ 2.7 kcal

Title: If the heat of vaporization for water is 540 cal/g, how many kilocalories are released when 5.00 g ...
Post by: frankwu0507 on Jun 7, 2021

Answer 1

12 kcal

Answer 2

2.7 kcal