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mrs_skeptik [129]
3 years ago
14

what is the density of a pice of wood of 23.0 grams and the dimensions mesuring 2.5 cm x 5.5 cm x 2.0cm

Chemistry
1 answer:
iren [92.7K]3 years ago
6 0
0.836363636 is the answer
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Hello, I need help with this question
KIM [24]

Answer:

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6 0
2 years ago
A gaseous system undergoes a change in temperature and volume. What is the entropy change for a particle in this system if the f
deff fn [24]

Explanation:

Entropy means the amount of randomness present within the molecules of the body of a substance.

Relation between entropy and microstate is as follows.

           S = K_{b} \times ln \Omega

where,      S = entropy

             K_{b} = Boltzmann constant

             \Omega = number of microstates

This equation only holds good when the system is neither losing or gaining energy. And, in the given situation we assume that the system is neither gaining or losing energy.

Also, let us assume that \Omega = 1, and \Omega' = 0.833

Therefore, change in entropy will be calculated as follows.

     \Delta S = K_{b} \times ln \Omega' - K_{b} \times ln \Omega

                 = 1.38 \times 10^{-23} \times ln(0.833) - 1.38 \times 10^{-23} \times \times ln(1)

                 = 1.38 \times 10^{-23} \times (-0.182)

                 = -0.251 \times 10^{-23}

or,             = -2.51 \times 10^{-24}

Thus, we can conclude that the entropy change for a particle in the given system is -2.51 \times 10^{-24} J/K particle.

8 0
3 years ago
Describe the relative charge, relative mass and location of a proton.
Molodets [167]
The relative charge of a proton is +1. The relative mass of a proton is 1. The location of a proton is in the nucleus of an atom.
Hope this helps!
6 0
3 years ago
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Why does the water turn blue after some time when blue ink is dropped in water? Which property
zepelin [54]

Answer:

Particles are constatantly moving and diffusing

This is possible because of diffusion

Explanation:

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7 0
3 years ago
What is the formula of calcium carbonate​
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Answer:

<h3>hope its help u.................</h3>

8 0
3 years ago
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