Question

Four samples of steel, lead, alcohol and glass all have the same mass and are all initially at 20 °C. After 100 calories of heat is added to each sample, the final temperatures are 38.2 °C for the steel, 85.6 °C for the lead, 23.4 °C for the alcohol, and 30 °C for the glass. Which of these four materials has the largest specific heat capacity? ( ) The steel ( ) The lead ( ) The alcohol ( ) The glass

Answer #1

If the same amount of thermal energy is added to samples of
several substances, the sample that would show the greatest
increase in temperature would be the one with the?
A) Smallest Specific Heat
B) Largest Specific Heat
C) Smallest Heat Capacity
D) Largest Heat Capacity
E) The largest enthalpy of formation
The answer is C, but why?

Hot tea (water) of mass 0.21 kg and temperature 62 ∘C is
contained in a glass of mass 200 g that is initially at the same
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freezer that are at a temperature of – 11 ∘C. What is the minimum
amount of ice in you need to make ice tea (final temperature of
0∘C)? Give your answer in kg to two decimal places. The specific
heat of...

Different amounts of thermal energy are added to each of three
isolated samples A,B and C of lead. If the energy transfers are
ordered as QC>QB>QA and each sample undergoes the same
temperature change, which sample has the largest mass?
More information is required
The answer depends on the exact inital temperatures
Sample A
Sample C
The specific heats are identical
Sample B

23 g of water at 21°C is contained in a glass container of mass
327 g. An additional 149 g of water at 100°C is added. What is the
final equilibrium temperature (in degrees C) if we treat the
system's water and container as isolated? Use the heat capacity
values from the this table

7. Calorimetry A piece of metal has mass 100 grams and an
initial temperature of 100'C. lt is placed in an insulated
container of mass 200 grams which contains 500 grams of water at an
initial temperature of 17 .3"C. The container is made of the same
material as the metal sample. lf the final temperature is 22.7'C,
what is the specific heat capacity of this metal? How many calories
('1 cal = 4.186 J) are required to warm the...

Part A IN gams: In an experiment, a 0.270-kg piece of ceramic
superconducting material at 17 °C is placed in liquid nitrogen at
its boiling point (−195.8 °C) to cool. The nitrogen is in a
perfectly insulated flask that allows the gaseous N2 to escape
immediately. How much mass of liquid nitrogen will be boiled away?
(Take the specific heat of the ceramic material to be the same as
that of glass.)
Part B In m/s: A 85.0-gram lead bullet...

(a) A student drops two metallic objects into a 120 g steel
container holding 150 g of water at 25◦C. One object is a 200 g
cube of copper that is initially at 85◦C, and the other is a chunk
of aluminum that is initially at 5◦C. To the student’s surprise,
the water reaches a final temperature of 25◦C, precisely where it
started. What is the mass of the aluminum chunk? Specific heats of
water, steel, copper, and aluminum are...

The specific heat capacity of aluminium is C aluminium= 900
J/kgC, and that of iron is C iron=450J/kgC. Samples of pure
aluminium with mass M aluminium =50 kg and iron with mass M iron=
100 kg are prepared, along with a number of fancy boxes through
wich heat does not flow. At an initial time, both the aluminium and
iron samples are at T initial= 20C.
e)Determine the effective specific heat capacity of the combined
samples.
f)ONe half of the...

Imagine that you have two pieces of different types of metal of
the same mass. You then perform the following experiment. You take
500 ml of water in a well-insulated beaker with a diameter of 75 mm
at 20.0+/-0.05°C. The two masses are heated to 100 +/- 0.05°C.
Metal A is place in the water container. After waiting some time,
you find that the temperature of the system stabilizes at 24.8+/-
0.05 °C. You then add metal B to the...

1- A mystery material is initially at 15°C. A total of 86 cal of
heat is added to the material, changing its temperature to 61°C. If
this material has a mass of 159 g, what must be the specific heat
capacity of the material?
(In cal/g·C°)
2- Is it possible for there to be a system where heat is added
to a gas, but the gas maintains a constant temperature?
3- Two identical conducting spheres on insulating stands each
initially...

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