Question

26.0 g of copper pellets are removed from a 300∘C oven and immediately dropped into 90.0 mL of water at 19.0 ∘C in an insulated cup. What will the new water temperature be?

Answer #1

29 g of copper pellets are removed from a 300∘C oven and
immediately dropped into 90 mL of water at 23 ∘C in an insulated
cup. What will the new water temperature be?

29.0 g of copper pellets are removed from a 300?Coven and
immediately dropped into 90.0 mL of water at 25.0 ?C in an
insulated cup.? What will the new water temperature be?

21 g of copper pellets are removed from a 300∘C oven and
immediately dropped into 80 mL of water at 17 ∘C in an insulated
cup.
Part A
What will the new water temperature be?
Express your answer in degrees Celsius.

22.0 gg of copper pellets are removed from a 300∘C∘C oven and
immediately dropped into 120 mLmL of water at 17.0 ∘C∘C in an
insulated cup.
What will the new water temperature be?

52.76 g of copper pellets are removed from a 333°C
oven and immediately dropped into 151 mL of water at
16°C in an insulated cup. What will the new water
temperature be?
Specific heat of the copper is 385 J/kg·°C, specific
heat of the water is 4190 J/kg·°C.

A copper block is removed from a 320 ∘C oven and dropped into
1.20 kg of water at 22.0 ∘C. The water quickly reaches 27.5 ∘C∘and
then remains at that temperature.
What is the mass of the copper block? The specific heats of
copper and water are 385 J/(kg⋅K) and 4190 J/(kg⋅K) respectively.
Express your answer with the appropriate units.

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

8.00 g of aluminum at 200∘C and 19.0 g of copper are dropped
into 44.0 cm3 of ethyl alcohol at 15.0∘C The temperature quickly
comes to 27.0 ∘C. What was the initial temperature of the
copper?

8.00 g of aluminum at 200∘C and 19.0 g of copper are dropped
into 50.0 cm3 of ethyl alcohol at 15.0∘C. The temperature quickly
comes to 25.0 ∘C.
What was the initial temperature of the copper in ∘C?

A 45.0 g sample of an alloy was heated to 90.0°C and then
dropped into a beaker containing 82.0 g of water at 23.5°C. The
temperature of the water rose to 26.2°C. What is the specific heat
of the alloy? Show your work.

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