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alex41 [277]
3 years ago
7

Temperature is used to measure the movement of particles such as atoms and molecules. As temperature increases, what is true of

the particles in a substance?
Chemistry
2 answers:
ch4aika [34]3 years ago
6 0
This is thermodynamics. When you increase the temperature of an object, the particles gain on kinethic energy ergo the move faster. When you decrease it, they slow down.
OLEGan [10]3 years ago
6 0

Explanation:

When there is increase in temperature then vibration between the atoms or molecules increases.  

This leads to decrease in force of attraction between the molecules. As a result, there will be increase in motion of molecules.

Thus, we can conclude that as temperature increases kinetic energy of molecules increases which leads to greater movement of particles.

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Explanation:

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What is the ph of an aqueous solution with the hydronium ion concentration : [h3o+] = 3 x 10-5 m ?
BaLLatris [955]

The concentration of hydrogen can be shown as:

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Electrons must be able to flow through a material in order for the material to conduct
djverab [1.8K]

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7 0
2 years ago
How much heat, in joules, must be added to a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature
svp [43]

Answer:

50,849.25 Joules

Explanation:

The amount of heat, Q, required to raise the temperature of a body with mass, m, and specific heat capacity, c is given by:

Q = mcΔT, where ΔT represents the change in temperature.

In the case of the iron block:

m = 75 g

c = 0.449 J/g °C

ΔT = 1535 - 25 = 1510 °C

Therefore,

Q = 75 g x 0.449 J/g °C x 1510 °C

     = 50,849.25 Joules

<em>Hence, </em><em>50,849.25 Joules </em><em> of heat must be added to  a 75.0-g iron block with a specific heat of 0.449 J/g °C to increase its temperature from 25 °C to its melting temperature of 1535 °C</em>

5 0
3 years ago
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