Question

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).

Answer #1

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).

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).

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).

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 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).

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.

A 21.0 g silver ring (cp = 234 J/kg·°C) is heated to a
temperature of 81.6°C and then placed in a calorimeter containing
5.20 ✕ 10-2 kg of water at 24.0°C. The calorimeter is not perfectly
insulated, however, and 0.140 J of energy is transferred to the
surroundings before a final temperature is reached. What is the
final temperature? °C

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

A 215-g sample of a substance is heated to 350 ∘C and then
plunged into a 105-g aluminum calorimeter cup containing 185 g of
water and a 17-g glass thermometer at 12.5 ∘C. The final
temperature is 35.0∘C. The value of specific heat for aluminium is
900 J/kg⋅C∘ , for glass is 840 J/kg⋅C∘ , and for water is 4186
J/kg⋅C∘
What is the specific heat of the substance? (Assume no water
boils away.)
Express your answer using three significant...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 4 minutes ago

asked 7 minutes ago

asked 8 minutes ago

asked 20 minutes ago

asked 45 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago

asked 2 hours ago