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Cerrena [4.2K]
4 years ago
13

Why do atoms exhibit line spectrum?

Chemistry
2 answers:
UNO [17]4 years ago
7 0
To track electron movements
mario62 [17]4 years ago
3 0

Atoms exhibit line spectrum when an electron moves from the excited state to the ground state.

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Rubidium and cesium have similar chemical
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Three metal spoons are on table. They are at room temperature. If the three spoons touch.
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If the spoons touch, no heat will flow among the spoons because they are already in thermal equilibrium with each other. This is hinted by the statement "they are at room temperature" which means they all have the same temperature. Heat only flows when there is a difference in temperature.<span>
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Which chemical reaction falls under the study of electrochemistry?
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According to periodic table which elements has seven valence electrons
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4. Assuming the reaction below is at equilibrium, which of the following changes will drive the reaction to the left? C(s) + O2(
shepuryov [24]

Answer:

Increasing temperature

Explanation:

C(s) + O_2(g) \leftrightharpoons CO_2(g)

Enthalpy of the reaction = -393.5 kJ/mol

Negative sign implies that reaction is exothermic.

Effect of change in reaction condition is explained by Le chateliers principle.

According to Le chateliers principle, if the reaction conditions of a reversible reaction in a state of dynamic equilibirum is changed, the reaction will move in a direction to counteract the change.

1. Increasing the temperature

Forward reaction is exothermic that means temperature increases in forward direction. Backward reaction will be endothermic and so there is decrease in temperature in backward direction or in left direction.

On increasing temperature, reaction will be move in direction to counteract the increased temperature, therefore reaction will move in left direction.

2. Adding O2

If O2 is added, then reaction will move in a direction in which its get consumed. So, reaction will move in forward direction or in right direction.

3. Removing C (s)

Le Chatelier's principle does not apply on solids, so removal of C(s) does not affect the equilibrium.

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