Formulas:
C = 5/9 (F - 32)
F = 9/5 (C) + 32
K = C + 273.15
1 calorie = 4.184 Joule
1 food calorie (Cal) = 1,000 chemistry calories (cal)
q = (m) (c) (change in T)
- q object = q water + q calorimeter
Problem 1
119 g of ethanol at 51.0 degrees is heated until it reaches 92.0 degrees. The specific heat of ethanol is 2.46 J / (g)(C). How much heat does the ethanol gain?
Answer: _______________________
Problem 2
How much heat is required to raise the temperature of 249 g of liquid ammonia from 61.5 degrees C to 81.2 degrees C? The specific heat of liquid ammonia is 4.70 J / (g)(C).
Answer: _______________________
Problem 3
A solid substance has a mass of 180 g. It is cooled by 76.1 degrees C and looses 8040 J of heat. What is the specific heat?
Answer: _______________________
Problem 4
A piece of metal with a mass of 11.4 g is heated to 58.7 degrees C. When the metal is placed in 88.0 g of water at 37.0 degrees C, the temperature of the water rises by 57.0 degrees C. What is the specific heat of the metal?
Answer: _______________________
Problem 5
A piece of gold (specific heat = 0.129 J / (g)(C)) with a mass of 91.2 g and a temperature of 35.8 degrees C is dropped into 937 g of water at 19.8 degrees C. What is the final temperature of the two combined?
Answer: _______________________
© 2018 Laura Glassel – lizzietutoring.blogspot.com
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