What determines the state of matter for any substance

Physics

1 answer:

Andrews [41]3 years ago

7 0

Amount of molecules present in the substance

Explanation:

In general state of matter is classified into three types based on the amount of molecules present in the matter. They are widely classified as

SOLID
LIQUID
GAS

SOLID

In solid the molecules are tightly packed without any free space to move inside. Therefore Solids have strong Inter-Molecular Force of attraction and have definite shape and volume.

LIQUID

In Liquid the molecules are not tightly packed. So that molecules move freely inside the matter. Therefore Liquids have Weaker Inter-Molecular Force of attraction and have no definite shape and no definite volume.

GAS

In Gas the molecules are loosely packed with more free space to move inside. Therefore Gas have the weakest Inter-Molecular Force of attraction and don't have definite shape and definite volume.

You might be interested in

A silver wire has a cross sectional area a = 2.0 mm2. a total of 9.4 × 1018 electrons pass through the wire in 3.0 s. the conduc

marta [7]

This problem uses the relationships among current I, current density J, and drift speed vd. We are given the total of electrons that pass through the wire in t = 3s and the area A, so we use the following equation to to find vd, from J and the known electron density n, so:

$v_{d} = \frac{J}{n\left | q \right |}$

<span>The current I is any motion of charge from one region to another, so this is given by:

</span> $I = \frac{\Delta Q}{\Delta t} = \frac{9.4x1018electrons}{3s} = 3189.73(A)$

The magnitude of the current density is:

$J = \frac{I}{A} = \frac{3189.73}{2x10^{-6}} = 1594.86(A/m^{2})$

Being:

$A=2mm^{2} = 2x10^{-6}m^{2}$
<span>
Finally, for the drift velocity magnitude vd, we find:

</span> $v_{d} = \frac{1594.86}{5.8x1028\left |1.60x10^{-19}|\right } = 1.67x10^{18}(m/s)$

Notice: The current I is very high for this wire. The given values of the variables are a little bit odd

6 0

3 years ago

2. An alternating current is represented by the equation I=20sin 100mt.

Sladkaya [172]

Explanation:

The general equation of an AC current is given by :

$I=I_o sin\omega t$