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What are the different types of calorimeters?
Bomb calorimeter and coffee-cup calorimeter. Both useful, however, the bomb calorimeter is better to use if you're measuring deltaH of a gas
What are the differences between simple calorimeter and bomb calorimeter?
bomb calorimeter measures heat transfer at constant while the cup measures at constant pressure.
The combustion of titanium with oxygen produces titanium dioxide.?
When 1.310 g of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 25.00°C to 68.10°C. In a separate experiment, the heat capacity of the calorimeter is measured to be 9.84 kJ/K. The heat of reaction for the combustion of a mole of in this calorimeter is __________ kJ/mol. 5.97-0.154-3119.43-1.55 × 104
Why high pressure oxygen is used in bomb calorimeter?
There are 2 reasons for using high pressure oxygen in bomb calorimeter. The 1st is that we need enough oxygen for a complete combustion in a very small volume. To do that the oxidant pressure must be high. The typical air ratios in a bomb calorimeter are between 4 and 9. The 2nd reason is that we want to measure the high calorific value of a fuel. Thus the water produced from the combustion must be in liquid form. For a certain temperature, the higher the vapor pressure, the higher the liquid water percentage. So, the higher the total pressure (25 atm), the higher the partial vapor pressure. jimmer
What is principle of working of bomb calorimeter?
A bomb calorimeter is a type of constant-volume calorimeter used in measuring the heat of combustion of a particular reaction. Bomb calorimeters have to withstand the large pressure within the calorimeter as the reaction is being measured. Electrical energy is used to ignite the fuel; as the fuel is burning, it will heat up the surrounding air, which expands and escapes through a tube that leads the air out of the calorimeter. When the air is escaping through the copper tube it will also heat up the water outside the tube. The temperature of the water allows for calculating calorie content of the fuel
What is the principle of Bunsen calorimeter?
bomb calorimeter is heat combustion
What are the different types of calorimeters?
Bomb calorimeter and coffee-cup calorimeter. Both useful, however, the bomb calorimeter is better to use if you're measuring deltaH of a gas
Why 1000c thermometer is used in bomb calorimeter why not 100c?
bcoz of space in the calorimeter....
A 0.48g sample of graphite is placed in a bomb calorimeter with an excess of oxygen The water and calorimeter are at 25 c The graphite is ignited and burned and the water temperature rises to 28.05c?
-392.5 kJ/mol
What are the differences between simple calorimeter and bomb calorimeter?
bomb calorimeter measures heat transfer at constant while the cup measures at constant pressure.
Why bomb calorimeter is called by that name?
In conducting a calorimetric test using a bomb calorimeter, the substance or object to be studied is placed inside the combustion crucible and ignited. The resulting reaction usually occurs so quickly that it resembles the explosion of a bomb-hence, the name "bomb calorimeter."
What is the conclusion of the bomb calorimeter experiment to determine the calorific values of fuel by means of a bomb calorimeter?
it is for determining gross calorific value of any coal
The combustion of titanium with oxygen produces titanium dioxide.?
When 1.310 g of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 25.00°C to 68.10°C. In a separate experiment, the heat capacity of the calorimeter is measured to be 9.84 kJ/K. The heat of reaction for the combustion of a mole of in this calorimeter is __________ kJ/mol. 5.97-0.154-3119.43-1.55 × 104
Why high pressure oxygen is used in bomb calorimeter?
There are 2 reasons for using high pressure oxygen in bomb calorimeter. The 1st is that we need enough oxygen for a complete combustion in a very small volume. To do that the oxidant pressure must be high. The typical air ratios in a bomb calorimeter are between 4 and 9. The 2nd reason is that we want to measure the high calorific value of a fuel. Thus the water produced from the combustion must be in liquid form. For a certain temperature, the higher the vapor pressure, the higher the liquid water percentage. So, the higher the total pressure (25 atm), the higher the partial vapor pressure. jimmer
How does a scientist find out how much energy is in food?
By burning a dried sample of it in a device called a "bomb calorimeter" with pure oxygen and measuring how much heat is released by the temperature rise in a water jacket around the "bomb".
What apparatus is used in determining quantities of heat in substances or chemical processes such as combustion?
A bomb calorimeter or Differential Scanning Calorimeter (DSC)
What is principle of working of bomb calorimeter?
A bomb calorimeter is a type of constant-volume calorimeter used in measuring the heat of combustion of a particular reaction. Bomb calorimeters have to withstand the large pressure within the calorimeter as the reaction is being measured. Electrical energy is used to ignite the fuel; as the fuel is burning, it will heat up the surrounding air, which expands and escapes through a tube that leads the air out of the calorimeter. When the air is escaping through the copper tube it will also heat up the water outside the tube. The temperature of the water allows for calculating calorie content of the fuel
