Kinetic molecular theory states that mass of matter remains unchanged in a chemical reaction.
Important Questions on Matter
Akash noticed that the metal latch on gate was difficult to open during hot sunny days. However, this same latch was not difficult to open at night. Akash observed that the latch and the gate are exposed to the sun during the day.
(A) Formulate a hypothesis based on the information provided.
(B) Briefly state how you would test the hypothesis stated in (a).
In a beam of sunlight entering a room, we can sometimes see dust particles moving in a haphazard way in the air. Why do these dust particles move ?
What happens to the kinetic energy of the particles of a solid when the heat is supplied to the solid at its melting point?
How will you demonstrate that particles of matter are continuously moving?
What is mass-energy equation given by scientist Albert Einstein?
Enter your correct answer as or .
How is the kinetic energy of the constituent particles of matter affected by change in temperature?
