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3 years ago

The average kinetic energy of the particles in an object is directly proportional to its

Chemistry

2 answers:

Yuliya22 [10]3 years ago

8 0

Answer: c) temperature

Explanation:

Kinetic energy is the energy possessed by an object by virtue of its motion.

Average kinetic energy is defined as the average of the kinetic energies of all the particles present in a system. It is determined by the equation:

$K=\frac{3RT}{2}$

From above, it is visible that kinetic energy is directly related to the temperature of the system. So, if temperature is more, average kinetic energy of the system is more and vice-versa.

Galina-37 [17]3 years ago

6 0

C. Temperature the average <span> kinetic energy of the particles in an object is directly proportional to its temperature </span>

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7. A rectangular block of lead (Pb) measures 20.0 mm X 30.0 mm X 45.0 mm. If the density of Pb is 11.34 g/cm3, calculate the mas

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3 years ago

Which of the following is not equal to 120 centimeters?

tia_tia [17]

<h3>Answer:</h3>

0.012 dekameters (dkm)

<h3>Explanation:</h3>

<u>We are given;</u>

120 centimeters( cm).

Required to identify the measurements that is not equivalent to 120 cm.

Centimeters are units that are used to measure length together with other units such as kilometers(km), meters (m), millimeters (mm), dekameters (dkm), etc.

These units can be inter-converted to one another using suitable conversion factors.

To do this, we are going to have a table showing the suitable conversion factor from one unit to another.

Kilometer (km)

Decimeter (Dm)

Hectometer (Hm)\

Meter (m)

Dekameter (dkm)

Centimeter (cm)

Millimeter (mm)

Therefore;

To convert cm to km

Conversion factor is 10^5 cm/km

Thus;

120 cm = 120 cm ÷ 10^5 cm/km

= 0.0012 km

To convert cm to dkm

Conversion factor is 10 cm/dkm

Therefore,

120 cm = 120 cm ÷ 10 cm/dkm

= 12 dkm

To convert cm to m

The suitable conversion factor is 10^2 cm/m

Thus,

120 cm = 120 cm ÷ 10^2 cm/m

= 1.2 m

To convert cm to mm

Suitable conversion factor is 10 mm/cm

Therefore;

120 cm = 120 cm × 10 mm/cm

= 1200 mm

Therefore, the measurement that is not equal to 120 cm is 0.012 dkm

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3 years ago

If an object has a density of 0.55 g/mL, what is its density in cg/L?

expeople1 [14]

"cg" is centigram, which is one-hundredth of a gram.

I will first convert from g to cg (multiply by 100), then from mL to L (multiply by 1000).

$\frac{0.55g}{mL}*\frac{100cg}{1g}*\frac{1000mL}{1L}=55,000\frac{cg}{L} \ or \ 5.5e4\frac{cg}{L}$

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3 years ago

Gift points I'm sad..........

Naddika [18.5K]

Awh, why are you sad? :(

8 0

2 years ago

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