1] All of us are familiar with LPG cooking gas cylinder used at home.
a) What is the full form of LPG?
b)What is it is composed of?
c) In what form of gas is a stored? What the factors responsible for it?
d) What is the change observe when regulator is opened? why?
2] Water droplets seen on the outer surface of a glass containing ice cold water. Name the process and state cause.
please answer this question it is a very important.
Answers
Answer:
Aa) The acronym LPG stands for liquefied petroleum gas and in common parlance describes gases that remain liquid at room temperature under relatively low pressure, such as propane, butane and their mixtures.
Ba)L PG is a by-product of the refinery process. It consists mainly of propane (C3H8) and butane (C4H10) but may in addition contain some of the unsaturated components propene (C3H6) and butene (C4H8). The composition of LPG from its individual components is not fixed
Ca) Answer: Normally, the gas is stored in liquid form under pressure in a steel container, cylinder or tank. The pressure inside the container will depend on the type of LPG (commercial butane or commercial propane) and the outside temperature. When you start using LPG, some of the pressure in the container is released
Da) Answer: Regulator will thus get detached from the valve. Place the safety cap on top of the valve. Press the cap firmly down until a distinct click is heard
2a) this phenomenon is known as condensation. Cold water inside the water tries to cool down The water vapor in air which comes in contact with wall of glass and due to low temperature the vapor liquid and appears as water droplets on the outside of glass.
Explanation: