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Why when you apply heat to ammonia crystals do they create a cold gas?
When heat is applied to ammonia crystals, they absorb energy and undergo endothermic decomposition to form gaseous ammonia and hydrogen gas. This reaction consumes heat from the surroundings, causing a cooling effect. Therefore, the resulting ammonia gas feels cold.
What can be said about the reaction 2NH3 g N2 g 3H2 g H 92.4 kJ mol?
The Reaction is Endothermic
Does Liquid ammonia have a higher heat capacity than liquid water?
No, liquid water has a higher heat capacity than liquid ammonia. Water has a high specific heat capacity due to its hydrogen bonding, which allows it to absorb and release heat more effectively than ammonia.
What is the symbol for molar heat capacity and how is it calculated?
The symbol for molar heat capacity is (Ctextm). It is calculated by dividing the heat capacity of a substance by the amount of substance in moles. Mathematically, it is expressed as (Ctextm fracCn), where (C) is the heat capacity and (n) is the amount of substance in moles.
Why ammonia act as cooling agent?
Ammonia acts as a cooling agent because it has a high latent heat of vaporization, meaning it absorbs a significant amount of heat when it evaporates. This property allows it to extract heat from its surroundings, resulting in a cooling effect when used in refrigeration systems.
How much heat is evolved when 251 g of ammonia gas condenses to a liquid at its boiling point?
To find the heat evolved, you can use the heat of vaporization for ammonia, which is 23.4 kJ/mol. First, calculate the number of moles in 251 g of ammonia, then multiply the moles by the heat of vaporization to get the total heat evolved.
The amount of heat involved in the synthesis of 1 mole?
The amount of heat involved in the synthesis of 1 mole of a substance is called the molar enthalpy of formation, often denoted as ΔHf. This value represents the heat change when 1 mole of a compound is formed from its elements in their standard states. It can be positive (endothermic) or negative (exothermic) depending on the specific reaction.
How will you prepare inorganic benzene from diborane?
Take a multiple of three moles of diborane plus a multiple of six moles of ammonia, mix them together, heat them to 300 degrees Celsius and stand by with a fire extinguisher because reacting three moles of diborane with six moles of ammonia liberates 12 moles of hydrogen.
Why when you apply heat to ammonia crystals do they create a cold gas?
When heat is applied to ammonia crystals, they absorb energy and undergo endothermic decomposition to form gaseous ammonia and hydrogen gas. This reaction consumes heat from the surroundings, causing a cooling effect. Therefore, the resulting ammonia gas feels cold.
What can be said about the reaction 2NH3 g N2 g 3H2 g H 92.4 kJ mol?
The Reaction is Endothermic
Does Liquid ammonia have a higher heat capacity than liquid water?
No, liquid water has a higher heat capacity than liquid ammonia. Water has a high specific heat capacity due to its hydrogen bonding, which allows it to absorb and release heat more effectively than ammonia.
When you heat ammonium hydroxide what does it give?
ammonia NH3
What is the symbol for molar heat capacity and how is it calculated?
The symbol for molar heat capacity is (Ctextm). It is calculated by dividing the heat capacity of a substance by the amount of substance in moles. Mathematically, it is expressed as (Ctextm fracCn), where (C) is the heat capacity and (n) is the amount of substance in moles.
Why ammonia act as cooling agent?
Ammonia acts as a cooling agent because it has a high latent heat of vaporization, meaning it absorbs a significant amount of heat when it evaporates. This property allows it to extract heat from its surroundings, resulting in a cooling effect when used in refrigeration systems.
Is the reaction of ammonia exothermic or endothermic?
Previous answer: ExothermicEdit by a concerned member of the community: Reaction of ammonia with WHAT?
What is the heat released during the synthesis of one mole of compound from its elements?
Molar heat (or enthalpy) of formation.
How does an ammonia refrigerator work to cool food and beverages efficiently?
An ammonia refrigerator works by using a combination of ammonia, water, and hydrogen gas to create a cooling effect. The ammonia is heated, turning it into a gas, which then absorbs heat from the inside of the refrigerator, cooling the food and beverages. The ammonia gas is then condensed back into a liquid form, releasing the heat outside the refrigerator. This process allows the refrigerator to efficiently cool food and beverages.
