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What flame on the Bunsen burner do you use to heat a piece of solid coal?
Use the blue inner flame when heating a piece of solid coal on a Bunsen burner. Adjust the air hole to control the intensity of the flame, ensuring efficient heating of the coal.
What type of flame should be used for heating solids?
A non-luminous (blue) flame is ideal for heating solids as it provides a consistent and even heat distribution. A non-luminous flame is hotter than a luminous flame, making it more efficient for heating purposes. Additionally, it reduces the risk of leaving soot or unburned fuel residue on the solid material.
How do you heat a solid in a Bunsen flame?
A solid can be heated in a Bunsen flame by placing it on a heat-resistant material like a ceramic or wire gauze, and then holding it above the flame. The solid should be slowly moved through the outer part of the flame, where the temperature is higher, to ensure even heating. It's important to monitor the solid closely to prevent overheating or combustion.
What holds a small solid in a Bunsen burner flame?
A metal wire or ceramic triangle called a "crucible" is typically used to hold a small solid in a Bunsen burner flame during heating. This allows for better heat transfer and prevents the solid from rolling out of the flame.
What solid sublimes on heating?
Some solids are Carbon dioxide, Snow, Iodine and Naphthalene
What flame on the Bunsen burner do you use to heat a piece of solid coal?
Use the blue inner flame when heating a piece of solid coal on a Bunsen burner. Adjust the air hole to control the intensity of the flame, ensuring efficient heating of the coal.
What type of flame should be used for heating solids?
A non-luminous (blue) flame is ideal for heating solids as it provides a consistent and even heat distribution. A non-luminous flame is hotter than a luminous flame, making it more efficient for heating purposes. Additionally, it reduces the risk of leaving soot or unburned fuel residue on the solid material.
How do you heat a solid in a Bunsen flame?
A solid can be heated in a Bunsen flame by placing it on a heat-resistant material like a ceramic or wire gauze, and then holding it above the flame. The solid should be slowly moved through the outer part of the flame, where the temperature is higher, to ensure even heating. It's important to monitor the solid closely to prevent overheating or combustion.
What holds a small solid in a Bunsen burner flame?
A metal wire or ceramic triangle called a "crucible" is typically used to hold a small solid in a Bunsen burner flame during heating. This allows for better heat transfer and prevents the solid from rolling out of the flame.
What item can heat a solid in the presence of air?
A Bunsen burner can heat a solid in the presence of air by producing a hot flame that can be directed onto the solid material for heating purposes.
What solid sublimes on heating?
Some solids are Carbon dioxide, Snow, Iodine and Naphthalene
Can solid carbondioxide sublime on heating?
Yes, solid carbon dioxide, also known as dry ice, can sublime directly from a solid to a gas when heated. This means it skips the liquid phase and turns directly into carbon dioxide gas. Sublimation occurs because the pressure and temperature conditions allow the solid to transition directly into a gas.
Why sublime substance change directly from solid to gas on heating?
Because the entropy is negative making it spontaneous.
What is the common substance which sublime on heating?
One common substance that sublimes on heating is dry ice, which is solid carbon dioxide. When heated, dry ice transitions directly from a solid to a gas without passing through the liquid phase.
What process solid change to gas?
The process of changing from a solid to a gas is called sublimation. In sublimation, a solid directly transitions to a gas without passing through the liquid phase. This is usually achieved by heating the solid substance to its sublimation point, where it bypasses the melting phase and goes directly into the gas phase.
Which of the element is sublimes on heating?
One example of an element that sublimes on heating is iodine. When solid iodine is heated, it directly changes into a gas without passing through a liquid phase.
What is the purple gas which fills the test tube when heating an iodine?
The purple gas formed when heating solid iodine in a test tube is iodine vapor. Iodine sublimes directly from a solid to a gas when heated, turning into a purple gas that condenses back into solid iodine crystals when cooled.
