Question

A boy inflates a balloon and holds it a foot above a candle flame.

What will happen as the air particles in the balloon undergo an increase in temperature?
Select all that apply.

a )The thermal energy of the air particles will decrease.
b)The velocity of the air particles will increase.
c) The mass of the air particles will increase.
d) The kinetic energy of the air particles will increase.

Answer 1

Step-by-step explanation:

It is known that kinetic energy is the energy acquired by particles of an object.

Also, kinetic energy is directly proportional to temperature.

Mathematically, K.E =
`(3)/(2)kT`

where k = boltzmann constant

T = temperature

So, when balloon is heated over a candle then molecules of air present inside the balloon start to move more rapidly. Hence, there will be increase in kinetic energy of particles.

Thus, we can conclude that this happens when air particles in the balloon undergo an increase in temperature.

• The velocity of the air particles will increase.

• The kinetic energy of the air particles will increase.

Answer 2

The answer is option b and d.

That is b)The velocity of the air particles will increase and d) The kinetic energy of the air particles will increase.

As the balloon is kept above a candle flame, the temperature of air particles inside the balloon increases and that increases the velocity of the air particles that is turn increases the kinetic energy of the air particles.