Question

A 299 g silver figure of a polar bear is dropped into the 211 g aluminum cup of a well‑insulated calorimeter containing 259 g of liquid water at 21.5∘C. The bear's initial temperature is 96.5∘C. What is the final temperature of the water, cup, and bear when they reach thermal equilibrium? The specific heats of silver, aluminum, and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and 4190 J/(kg·K).

Answer #1

A 281 g silver figure of a polar bear is dropped into the 219 g
aluminum cup of a well‑insulated calorimeter containing 269 g of
liquid water at 21.3∘C. The bear's initial temperature is 99.5∘C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

A 285 g285 g silver figure of a polar bear is dropped into the
215 g215 g aluminum cup of a well‑insulated calorimeter containing
277 g277 g of liquid water at 23.3∘C.23.3∘C. The bear's initial
temperature is 95.3∘C.95.3∘C. What is the final temperature of the
water, cup, and bear when they reach thermal equilibrium? The
specific heats of silver, aluminum, and liquid water are,
respectively, 234 J/(kg·K),234 J/(kg·K), 910 J/(kg·K),910 J/(kg·K),
and 4190 J/(kg·K).

You drop a 297-g silver figure of a polar bear into the 247-g
aluminum cup of a well-insulated calorimeter containing 259 g of
liquid water at 22.3°C. The bear\'s initial temperature is 98.5°C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

You drop a 291-g silver figure of a polar bear into the 247-g
aluminum cup of a well-insulated calorimeter containing 261 g of
liquid water at 21.9°C. The bear\'s initial temperature is 97.9°C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

You drop a 285-g silver figure of a polar bear into the 241-g
aluminum cup of a well-insulated calorimeter containing 263 g of
liquid water at 23.9°C. The bear\'s initial temperature is 95.9°C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

You drop a 297-g silver figure of a polar bear into the 205-g
aluminum cup of a well-insulated calorimeter containing 277 g of
liquid water at 24.5°C. The bear\'s initial temperature is 95.5°C.
What is the final temperature of the water, cup, and bear when they
reach thermal equilibrium? The specific heats of silver, aluminum,
and liquid water are, respectively, 234 J/(kg·K), 910 J/(kg·K), and
4190 J/(kg·K).

An 100-g aluminum calorimeter contains 280 g of water at an
equilibrium temperature of 20°C. A 170-g piece of metal, initially
at 277°C, is added to the calorimeter. The final temperature at
equilibrium is 32°C. Assume there is no external heat exchange. The
specific heats of aluminum and water are 910 J/kg·K and 4190
J/kg·K, respectively. The specific heat of the metal is closest
to:
a) 270 J/kg·K.
b) 240 J/kg·K.
c) 330 J/kg·K.
d) 390 J/kg·K.
e) 360 J/kg·K.

An insulated aluminum calorimeter vessel of 150 g mass contains
300 g of liquid nitrogen boiling at 77 K. A metal block at an
initial temperature of 303 K is dropped into the liquid nitrogen.
It boils away 15.8 g of nitrogen in reaching thermal equilibrium.
The block is then withdrawn from the nitrogen and quickly
transferred to a second insulated copper calorimeter vessel of 200
g mass containing 500 g of water at 30.1 degrees celsius. The block
coolds...

A 25 g gold nugget with an initial temperature of 60 °C is
dropped into an insulated cup containing 100 ml of water initially
at a temperature of 5°C. What is the final temperature after
thermal equilibrium is established?
Table 3.4 Specific Heat Capacities of Some Common Substances
Substance Specific Heat Capacity (J/g °C) Lead 0.128 Gold 0.128
Silver 0.235 Copper 0.385 Iron 0.449 Aluminum 0.903 Ethanol 2.42
Water 4.184

The aluminum cup inside your calorimeter weighs 39.96 g. You add
49.96 g of ice cold water to the calorimeter. You measure the
temperature of the calorimeter to be 0.5oC just before your next
addition. You then add 50.44 g of hot water and a 50.10 g metal
object, all having an initial temperature of 69.5oC. After the
calorimeter reaches thermal equilibrium, the final temperature is
measured to be 36.1oC. Assume that: the calorimeter is completely
insulated the heat capacity...

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