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victus00 [196]
3 years ago
11

Describe the motion of molecules in an ice cube and in a radiator in winter

Chemistry
1 answer:
algol133 years ago
5 0

Molecules in an ice cube have lower kinetic energy than molecules in a radiator.

Molecules in an ice cube move more slowly than molecules in a radiator. They collide with less force than molecules in a radiator.

When in direct contact, the fast-moving molecules in the radiator collide with the slow-moving molecules in the ice cube.

Kinetic energy is transferred from the molecules in the radiator to the molecules in the ice cube, causing a slowdown of the radiator molecules and an acceleration of the ice molecules.

for edge

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Sodium carbonate, Na2CO3(s), can be prepared by heating sodium bicarbonate, NaHCO3(s). 2 NaHCO3(s) Na2CO3(s) + CO2(g) + H2O(g) K
Elenna [48]

Answer:

The pressure of CO2 = 0.48 atm

Explanation:

Step 1: Data given

Kp = 0.23

Step 2: The balanced equation

2NaHCO3(s) ↔ Na2CO3(s) + CO2(g) + H2O(g)

Step 3: Calculate the pressure of CO2

Kp = (p(CO2))*(p(H2O))

For 1 mol CO2 we have 1 mol H2O

x = p(CO2) = p(H2O)

Kp = 0.23 = x*x

x = √0.23

x = 0.48

pCO2 = x atm = 0.48 atm

The pressure of CO2 = 0.48 atm

5 0
3 years ago
If 0.00872 mol neon gas at a particular temperature and pressure occupies a volume of 211 mL, what volume would 0.00701 mol neon
GuDViN [60]

Answer:

0.00701 moles of neon gas will occupy 170 ml of volume under the same conditions.

Explanation:

The relationship of number of moles and volume at constant temperature and pressure was given by Avogadro's law. This law states that volume is directly proportional to number of moles at constant temperature and pressure.

The equation used to calculate number of moles is given by:

\frac{V_1}{n_1}=\frac{V_2}{n_2}

where,

V_1\text{ and }n_1 are the initial volume and number of moles

V_2\text{ and }n_2 are the final volume and number of moles

We are given:

V_1=211 mL\\n_1=0.00872 mol\\V_2=?\\n_2=0.00701 mol

Putting values in above equation, we get:

\frac{211 mL}{0.00872 mol}=\frac{V_2}{0.00701}

V_2=\frac{211 mL\tomes 0.00701 mol}{0.00872 mol}=169.62 mL\approx 170 mL

0.00701 moles of neon gas will occupy 170 ml of volume under the same conditions.

3 0
3 years ago
How do Nitrate levels vary between tap water bottled water distilled water and outdoor water?
Ganezh [65]
  • The key difference between tap water and distilled water is that tap water may contain impurities whereas distilled water does not contain impurities. Water covers more than 70% of the earth' surface. Thus, there is less than 1% of water left for direct human use.

<h2>HOPE IT HELPS!</h2>

#BrainlyFast

#MakethisBrainliestAnswer

8 0
2 years ago
What is NH3+HCl &gt; NH4Cl as a balanced equation
Leno4ka [110]
It’s already balanced
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3 years ago
Which method of separation would be most appropriate for separating a mixture of water and alcohol?(1 point)
Gelneren [198K]

Answer:

fractional distillation  is the correct answer

Explanation:

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8 0
2 years ago
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