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belka [17]
2 years ago
9

Describe in detail an experiment using only hot and cold water that would enable you to

Chemistry
1 answer:
gizmo_the_mogwai [7]2 years ago
5 0

Based on the principle of conservation of energy, the heat capacity of the calorimeter is calculated using the formula:

  • c = {m2 × w × (t2 - t1) - m2 × w × (t2 -t1)}/m3 × (t2 -t1)

<h3>What is a calorimeter?</h3>

A calorimeter is an equipment used to determine heat of reaction.

The calorimeter works on the principle of conservation of energy:

  • heat gained = heat lost

Quantity of heat energy is calculated using the formula below:

  • q = mass × heat capacity × temperature difference

In the experiment, the following procedure is followed:

  • Mass of the hot water, cold water and calorimeter are recorded
  • temperature of the hot water is recorded
  • temperature of the the cold water and calorimeter is recorded
  • final temperature of the mixture is recorded
  • heat capacity of the calorimeter is calculated using the formula: heat gained by calorimeter and cold water = heat lost by hot water.

Assuming that;

  • mass of hot water = m1
  • mass of cold water =m2
  • mass of calorimeter = m3
  • initial temperature cold water and calorimeter = t1
  • final temperature of mixture = t2
  • heat capacity of water = w
  • heat capacity of calorimeter = c

Therefore, the heat capacity of the calorimeter is calculated using the formula:

  • c = {m2 × w × (t2 - t1) - m2 × w × (t2 -t1)}/m3 × (t2 -t1)

Learn more about calorimeters at: brainly.com/question/1407669

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An atom with an atomic number of 10 and a mass number of 24 would have ________.
Anastaziya [24]

An atom with an atomic number of 10 and a mass number of 24 would have 14 neutrons.

<h3>What is atomic number and mass number?</h3>

The term atomic number, conventionally denoted by the symbol Z.

Atomic number indicates the number of protons present in the nucleus of an atom, which is also equal to the number of electrons in an uncharged atom.

The mass number of a given atom is defined by the number of protons and neutrons present in the nucleus. In simple,

Protons + Neutrons = Mass Number

To learn more about atoms, refer

https://brainly.in/question/5318

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6 0
1 year ago
Name 3 sources of carbohydrates for the production of an alcoholic drink
icang [17]

Answer:An alcoholic drink is a drink that contains ethanol, a type of alcohol produced by fermentation of grains, fruits, or other sources of sugar. The consumption of alcohol plays an important social role in many cultures. Most countries have laws regulating the production, sale, and consumption of alcoholic beverages.

Explanation: vodka the preferred alcoholic beverage of choice among alcoholics? #3 Doesn't make you feel bloated or full like beer does. It goes down quickly and smooth. #4 Gets you drunk just as fast as any other hard liquor can, and obviously much faster than beer or wine.

4 0
3 years ago
If the pressure on a gas at -73°C is doubled but its volume is held constant, what will its final temperature be in degrees Cels
Gre4nikov [31]

Answer:

127°C

Explanation:

This excersise can be solved, with the Charles Gay Lussac law, where the pressure of the gas is modified according to absolute T°.

We convert our value to K → -73°C + 273 = 200 K

The moles are the same, and the volume is also the same:

P₁ / T₁ = P₂ / T₂

But the pressure is doubled so: P₁ / T₁ = 2P₁ / T₂

P₁ / 200K = 2P₁ / T₂

1 /2OOK = (2P₁ / T₂) / P₁

See how's P₁ term is cancelled.

200K⁻¹ = 2/ T₂

T₂ = 2 / 200K⁻¹  → 400K

We convert the T° to C → 400 K - 273 = 127°C

4 0
3 years ago
Which statement describes the particles of an ideal gas based on the kinetic molecular theory?
Zielflug [23.3K]

Answer:

Well ads I remember, the motion of the gas particles is random and in a straight-line. A sample of gas is contained in a closed rigid cylinder.

And here is what I found too -

According to Kinetic Molecular Theory, gaseous particles are in a state of constant random motion; individual particles move at different speeds, constantly colliding and changing directions. We use velocity to describe the movement of gas particles, thereby taking into account both speed and direction.

8 0
3 years ago
Pls help. I have the question in a ss
gladu [14]

Answer:

D.

Explanation:

The hypothesis was that speed would increase with the addition of mass from passengers. The data shows that when passengers/mass are added, speed decreases.

4 0
3 years ago
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