Question

Jenny measures the temperature inside a cave to be 10°C. The temperature outside the cave is about 30°C warmer.

How does the kinetic energy of the air molecules inside the cave compare to the kinetic energy of the air molecules outside the cave?

Answer 1

Explanation:

Kinetic Energy is basically the rapid movement of the air molecules.

Remember this technique:-

Smaller the space, lesser the temperature and hence less activity by the gas particles. Hence, lesser the kinetic energy.

This derives :-

Temperature is directly proportional to kinetic energy.

So, the temperature inside the cave was less, so the kinetic Energy was less.

On the other hand when the temperature increases ie 30°C warmer, the activity rate increases and hence the kinetic energy increases.

Kinetic Energy of air molecules inside the cave < Kinetic energy of air molecules outside the cave $.$

Answer 2

Answer:

Question :-

Jenny measure the temperature inside a cave to be 10⁰C . The temperature outside the cave is about 30⁰C warmer.

How does the kinetic energy of the air molecules inside the cave compare to the kinetic energy of the air molecules outside the cave.

Solution :-

Jenny measure the temperature inside a cave to be 10° C.

The temperature outside the cave is about 30°C.

As, kinetic energy is directly proportional to the overall temperature as per kinetic molecular theory.

Then, we can observe that the kinetic energy of the air molecules inside the cave is less than the kinetic energy of the air molecules outside the cave.

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Extra Information for General Knowledge ;

☆ Kinetic Energy :

• Kinetic energy of an object is the measure of the work an object can do by the virtue of its motion.
• Kinetic energy is a scaler quantity.
• The S.I unit of kinetic energy is Joule.
• The C.G.S unit of kinetic energy is erg.

✯ Formula for Kinetic Energy :

$\bigstar$ $\sf Kinetic\: Energy =\: \dfrac{1}{2}mv^2$ $\bigstar$

where,

[ v = Velocity of the body ,

m = Mass of the body. ]