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MatroZZZ [7]
3 years ago
7

Nolan and Hunter are studying heat flow, so they design the following apparatus. The apparatus consists of two identical glass c

ylinders connected by a glass tube. During their experiment, Nolan and Hunter simultaneously pour hot water in the tank on the left and cold water in the tank on the right. Then, they seal the tops of the cylinders and allow the water in the tanks to intermingle through the glass tube. To determine if heat is transferred, Nolan wants to place his hands in each tank of water at the beginning and end of the experiment. Hunter wants to use a thermometer to measure the temperature in each tank at the beginning and end of the experiment. How do Nolan and Hunter's proposed methods compare?
Chemistry
2 answers:
maks197457 [2]3 years ago
8 0

Nolan's method would allow him to make a descriptive observation. Hunter's method would allow him to include numbers in his data.


irinina [24]3 years ago
5 0

Nolan's method would allow him to make a descriptive observation. Hunter's method would allow him to include numbers in his data. just had this question ;)

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Answer:

The organism can be easily categorised, which really helps making it easier to understand the characteristics of a specific organism

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Do step 3 as outlined in the lab guide. Record your results in the appropriate blanks.
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Explanation:

Do the step 3 as outlined in the lab guide. record your results in the appropriate blank.

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Argon, which comprises almost 1 percent of the atmosphere, is approximately 27 times more abundant than CO2 but does not contrib
kykrilka [37]

B. Argon's vibrational energy is not excited by infrared radiation.

Explanation:

The property of carbon dioxide to get excited by infrared electromagnetic radiation is what qualifies it as a greenhouse gas. When infrared from the earth's surface is reflecting back to space, some of the radiation is absorbed and remitted by the carbon-dioxide molecules in the atmosphere. This causes a phenomenon called greenhouse effect that causes the atmosphere to be relatively warmer. The more the carbon dioxide molecules the more the greenhouse effect.

6 0
3 years ago
A sample of aluminum absorbs 9.86 J of heat, upon which the temperature increases from 23.2°C to 30.5°C. Since the specific heat
True [87]

Answer:

1.50 g

Explanation:

The heat absorbed by the aluminum in this case is:

q = m x C x ΔT     m= q/ (C x ΔT)

q= 9.86 J

C = 0.90 J/g-K

ΔT = ( 30.5 ºC - 23.2 ºC ) = 7.3 ºC = 7.3 K (this is a range of temperature)

m = 9.86 J / ( 0.90 J/g-K ) x 7.3 K ) = 1.50 g

8 0
3 years ago
A 48.0g sample of quartz, which has a specific heat capacity of 0.730·J·g−1°C−1, is dropped into an insulated container containi
Butoxors [25]

Answer:

The equilibrium temperature of the water is 26.7 °C

Explanation:

<u>Step 1:</u> Data given

Mass of the sample quartz = 48.0 grams

Specific heat capacity of the sample = 0.730 J/g°C

Initial temperature of the sample = 88.6°C

Mass of the water = 300.0 grams

Initial temperature = 25.0°C

Specific heat capacity of water = 4.184 J/g°C

<u>Step 2:</u> Calculate final temperature

Qlost = -Qgained

Qquartz = - Qwater

Q =m*c*ΔT

Q = m(quartz)*c(quartz)*ΔT(quartz) = -m(water) * c(water) * ΔT(water)

⇒ mass of the quartz = 48.0 grams

⇒ c(quartz) = the specific heat capacity of quartz = 0.730 J/g°C

⇒ ΔT(quartz) = The change of temperature of the sample = T2 -88.6 °C

⇒ mass of water = 300.0 grams

⇒c(water) = the specific heat capacity of water = 4.184 J/g°C

⇒ ΔT= (water) = the change in temperature of water = T2 - 25.0°C

48.0 * 0.730 * (T2-88.6) -300.0 * 4.184 *(T2 - 25.0)

35.04(T2-88.6) = -1255.2 (T2-25)

35.04T2 -3104.544 = -1255.2T2 + 31380

1290.24T2 = 34484.544

T2 = 26.7 °C

The equilibrium temperature of the water is 26.7 °C

8 0
3 years ago
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