Question

Which of the following conditions are observed when heat is supplied to the substance?

• A. $Solid$ + $Liquid,Liquid$
• B. $Solid+Liquid,Liquid,Gas$
• C. $Solid+Gas$
• D. $Solid+Gas,Liquid,Gas$

Answer 1

Answer: (B)

$Solid+Liquid,Liquid,Gas$

When heat is supplied to the substance, energy of molecules of substance increases. So, Kinetic energy of molecules also increses then, molecules of substsnce tends to move due to higher kinetic energy and convert phases from solid to liquid to gas, if further energy is supplied to the substance.