Question

A student doing an experiment pours 0.15 kg of heated copper shot into a 0.375 kg aluminum calorimeter cup containing 0.2 kg of water at 250 C. The mixtures (and the cup) comes to thermal equilibrium at 280 C. What was the initial temperature of the shot?

Answer #1

A student doing an experiment pours 0.500 kg of heated metal
whose temperature is 98.0 oC into a 0.356 kg aluminum
calorimeter cup containing 0.418 kg of water at 28.0 °C. The
mixture (and the cup) comes to thermal equilibrium at 38.0 °C. The
specific heat of the metal is ________ J/kg oC.
(specific heat of aluminum = 900 J/kg oC, specific heat
of water = 4186 J/kg oC)

The value of specific heat for copper is 390 J/kg⋅C∘, for
aluminun is 900 J/kg⋅C∘, and for water is 4186 J/kg⋅C∘.
What will be the equilibrium temperature when a 215 g block of
copper at 245 ∘C is placed in a 155 g aluminum calorimeter cup
containing 815 g of water at 16.0 ∘C?

The value of specific heat for copper is 390 J/kg⋅C∘, for
aluminun is 900 J/kg⋅C∘, and for water is 4186 J/kg⋅C∘ What will be
the equilibrium temperature when a 215 g block of copper at 245 ∘C
is placed in a 155 g aluminum calorimeter cup containing 875 g of
water at 12.0 ∘C?

The value of specific heat for copper is 390 J/kg⋅C∘, for
aluminun is 900 J/kg⋅C∘,and for water is 4186 J/kg⋅C∘.
What will be the equilibrium temperature when a 275 g block of
copper at 255 ∘C is placed in a 155 g aluminum calorimeter cup
containing 815 g of water at 16.0 ∘C?

The value of specific heat for copper is 390 J/kg?C?, for
aluminun is 900 J/kg?C?, and for water is 4186 J/kg?C?. What will
be the equilibrium temperature when a 215 g block of copper at 255
?C is placed in a 155 g aluminum calorimeter cup containing 875 g
of water at 16.0 ?C?

8. A 180 g block of copper heated to 120 degrees Celsius dropped
into a 360 g aluminum calorimeter container
containing 440 g of water. If the initial temperature of the
calorimeter and the water is 20 °C,
what is the final equilibrium temperature of the system?
9. 25 g steam at 110 °C is added temperature of the resulting
water 100 g of ice at -10 °C in an
insulated container. What is the final temperature of the resulting...

The value of specific heat for copper is 390 J/kg⋅C∘, for
aluminun is 900 J/kg⋅C∘, and for water is 4186 J/kg⋅C∘.
What will be the equilibrium temperature when a 215 g block of
copper at 255 ∘C is placed in a 155 g aluminum calorimeter cup
containing 845 g of water at 14.0 ∘C?
Express your answer using three significant figures.

A piece of unknown material of mass 0.15 kg is heated to 110°C
without melting and then placed in a calorimeter containing 0.76 kg
of water initially at 14.5°C. The system reaches an equilibrium
temperature of 20.8°C
a) What is the specific heat of the unknown material,
in units of J/(kg⋅°C)? The specific heat of water is 4.186 ×
103 J/(kg⋅°C).

A student obtains the following data in a calorimetry experiment
designed to measure the specific heat of aluminum.
Initial temperature of water and calorimeter 70.4°C
Mass of water 0.403 kg
Mass of calorimeter 0.04 kg
Specific heat of calorimeter 0.60 kJ/kg·°C
Initial temperature of aluminum 27.1°C
Mass of aluminum 0.196 kg
Final temperature of mixture 66.4°C
(a) Use these data to determine the specific heat of aluminum.
J/kg · °C
(b) Is your result within 15% of 900 J/kg ·...

What will be the equilibrium temperature when a 243 g block of
copper at 263 ∘C is placed in a 143 g aluminum calorimeter cup
containing 808 g of water at 14.4 ∘C?

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