With the help of a well-labelled diagram (with two labelling) explain how solid ammonium chloride converts directly to gaseous state on heating?
Important Questions on Matter in Our Surroundings
Santosh was getting late for the office. He tried to sip boiling hot tea from a cup. He felt very uncomfortable. His wife immediately brought a plate and asked him to sip the tea from the plate. Santosh followed her advice and did not face any problems.
How did sipping tea from a plate was more comfortable?
Santosh was getting late for the office. He tried to sip boiling hot tea from a cup. He felt very uncomfortable. His wife immediately brought a plate and
asked him to sip the tea from the plate. Santosh followed her advice and did not face any problem.
How did the wife of Santosh help him?
Santosh was getting late for the office. He tried to sip boiling hot tea from a cup. He felt very uncomfortable. His wife immediately brought a plate and asked him to sip the tea from the plate. Santosh followed her advice and did not face any problems.
What value of learners infer from the passage?
Meera had some guests visiting on Sunday afternoon. While serving them tea from the kettle, a gush of steam suddenly burns her fingers and she feels intense pain. Her mother asks her to keep her fingers under running tap water. After some time the pain subsides.
Answer the following question based on the above information :
What could be the possible reason for the intense pain felt by Meera?
Meera had some guests visiting on Sunday afternoon. While serving them tea from the kettle, a gush of steam suddenly burns her fingers and she feels intense pain. Her mother asks her to keep her fingers under running tap water. After some time the pain subsides.
Answer the following questions based on the above information :
Why does her mother asks her to keep her fingers under tap water?
Meera had some guests visiting on Sunday afternoon. While serving them tea from the kettle, a gush of steam suddenly burns her fingers and she feels intense pain. Her mother asks her to keep her fingers under running tap water. After some time the pain subsides.
Answer the following questions based on the above information :
What values are promoted by Meera's mother?
The boiling point of water is Express this in units (Kelvin scale).
Convert the temperature to the Celsius scale.
