CBSE Class 11 science: Effect of Heat on Matter Videos | States of Matter

• why do gas cools down when it is expanded
• 1st?
  
• The vapour density of a gas at 25 degree centigrade is 25.What will be its Vapour density at 50 degree centigrade?Explain.
• What factors are responsible for the existence of matter in three states?
• How gases can be liquefied?
• Convert 25^oC into Kelvin scale.
• Convert 120 Fahrenheit into Celsius scale.
• Out of fluorine and nitrogen monoxide which one has the higher melting and boiling points? Explain.
• Which has a higher boiling point I₂ or Br₂?
• Which should have a lower boiling point H₂O or H₂S?

Queries asked on Sunday & after 7 pm from Monday to Saturday will be answered after 12 pm the next working day.