Two metals of equal mass but different specific heat capacities are subjected to the same amount of heat. Which will undergo the smallest change in temperature?
Question 2
2.
Which of the following is true for temperature?
Question 3
3.
Which of the following is NOT TRUE when a sample of liquid water becomes ice?
Question 4
4.
A 112 gram sample of an unknown metal was heated from 0.0C to 20.0C. The sample absorbed 1004 J of energy. What was the specific heat capacity of this metal? Show/submit your work.
Question 5
5.
How much energy does a 2.01 gram sample of mercury (specific heat capacity is 0.14 J/g°C) gain if the temperature changes from 10.0°C to 40.0°C? Show/submit your work.
Question 6
6.
A hot metal sinker of mass 68.2 grams at 99.8°C is dropped into a cup containing 125 mL of water at 22.4°C. The final temperature in the cup is 31.0°C. What is the specific heat capacity of the metal? Submit/show your work.
Question 7
7.
A 45.9 gram sample of a metal is heated to 95.2°C and then placed in a cup of 120.0 gram room temperature (21.6°C). The final temperature of the water is 24.5°C. Which metal was used? Submit/show your work.
Question 8
8.
What is the energy change when 82 grams of water is boiled into steam at 100.0°C? Is this endothermic or exothermic? Show/submit your work.
Question 9
9.
What is the final temperature of a system where a 65.5 gram copper sinker at 97.4°C is dropped into 225 grams of water at 22.4°C? The specific heat capacity of copper is 0.3845 J/g°C. Show/submit your work.
Question 10
10.
How much energy is involved with 398 grams of steam is condensed into liquid water? Is this process endothermic or exothermic? Submit/show your work.
Question 11
11.
A 45.2 gram sample of iron (c= 0.4494 J/g°C) is exposed to 1350 J of energy. If the starting temperature is 19.4°C what is the final temperature? Show/submit your work.
Question 12
12.
Consider the following heating curve for water and answer the following questions:
a. Describe as fully as you can what is happening for each section of the curve (for example, what is going on between A and B, B and C, etc.
b. What is the temperature at point B?
c. What is the temperature at point E?
Question 13
13.
Which of the following statements are false?
Question 14
14.
A “normal” small bottle of water is 500mL in volume. Which involves more energy, freezing a bottle of water or boiling a cup of water (250mL) on the stove? Show/submit your work.