Which of these best describes how the kinetic energy of carbon dioxide molecules change as the carbon dioxide is heated?
2 answers:
Answer: The correct answer is Option B.
Explanation:
Kinetic energy is defined as the energy which is possessed by the motion of a particle. The formula for the kinetic energy follows:
where, R = Gas Constant
T = Temperature
From above expression, kinetic energy is directly proportional to temperature of the system
As the temperature is increases, the kinetic energy of the particles also increases and vice-versa.
In the given question,
The gas (carbon-dioxide) is heated which means the temperature of the gas is increases and hence, the kinetic energy will also be increased.
Hence, the correct answer is Option B.
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Answer:
If the frequency of the source is increased the current in the circuit will decrease.
Explanation:
The current through the circuit is given as;
Where;
V is the voltage in the AC circuit
Z is the impedance
Where;
R is the resistance
is the inductive reactance
= ωL = 2πfL
where;
L is the inductance
f is the frequency of the source
Finally, the current in the circuit is given as;
From the equation above, an increase in frequency (f) will cause a decrease in current (I).
Therefore, If the frequency of the source is increased the current in the circuit will decrease.