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aev [14]
1 year ago
14

How is a line spectra created from a hot gas? a. photons are emitted when the amount of radioactive material in the gas decrease

s by half. b. ionizing radiation knocks electrons out of an atom and they transform into photons. c. when electrons drop down from a high energy level they emit a photon. d. current flows through a filament and heats it up causing photons to be emitted.
Chemistry
1 answer:
fiasKO [112]1 year ago
4 0

Answer:

c when electrons drop down from a high energy level they emit a photon.

Explanation:

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<u>Answer:</u> The force that must be applied is 15 N.

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Force exerted on the object is defined as the product of mass of the object and the acceleration of the object.

Mathematically,

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F = force exerted = ?

m = mass of the object = 3 kg

a = acceleration of the object = 5m/s^2

Putting values in above equation, we get:

F=3kg\times 5m/s^2=15N

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A sample of oxygen gas has a volume of 3.24 L at 29°C. What volume will it occupy at 104°C if the pressure and number of mol are
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Mathematically,

\frac{V_1}{T_1}=\frac{V_2}{T_2}

where,

V_1\text{ and }T_1 are the initial volume and temperature of the gas.

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We are given:

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Putting values in above equation, we get:

\frac{3.24L}{302K}=\frac{V_2}{377K}\\\\V_2=4.04L

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