answersLogoWhite

0

In chemistry the transfer of heat (H) in reactions is illustrated by the Greek letter delta in front of H (ΔH). Heat can be released into the system (exothermic) or absorbed from it into the reaction's product.

User Avatar

Wiki User

10y ago

What else can I help you with?

Continue Learning about Natural Sciences

Why is it that you need a water trap in performing this experiment. why cant you introduce the steam directly to the calorimeter?

A water trap is needed in the experiment to prevent any liquid water from entering the calorimeter. Introducing steam directly to the calorimeter can lead to water droplets forming and entering the calorimeter, affecting the accuracy of the measurements. The water trap ensures that only dry steam enters the calorimeter, allowing for precise heat transfer measurements.


What is water equivalent of calorimeter?

The water equivalent of a calorimeter is the mass of water that would absorb or release the same amount of heat as the calorimeter itself for a given temperature change. It is a way to express the heat capacity of the calorimeter in terms of water, facilitating easier calculations in calorimetry experiments. The water equivalent is calculated by considering the specific heat capacity of the calorimeter's materials and their mass. This concept helps in determining the overall heat transfer during thermal processes.


What is the principle of Bunsen calorimeter?

The Bunsen calorimeter principle is based on the law of conservation of energy, where the heat released or absorbed in a chemical reaction is equal to the heat gained or lost by the surrounding water in the calorimeter. By measuring the temperature change of the water, one can calculate the heat exchanged in the reaction.


How do you use a calorimeter?

A calorimeter is used to keep heat contained in a single place as the calorimeter absorbs very little heat and the amount it absorbs can easily be calculated. To use the calorimeter heat the liquid you want (or cool) and place it in the calorimeter cup and put that in the calorimeter and place the lid on top and the thermometer in the thermometer's hole. There you go. Simple as that. A calorimeter is used to keep heat contained in a single place as the calorimeter absorbs very little heat and the amount it absorbs can easily be calculated. To use the calorimeter heat the liquid you want (or cool) and place it in the calorimeter cup and put that in the calorimeter and place the lid on top and the thermometer in the thermometer's hole. There you go. Simple as that. A calorimeter is used to keep heat contained in a single place as the calorimeter absorbs very little heat and the amount it absorbs can easily be calculated. To use the calorimeter heat the liquid you want (or cool) and place it in the calorimeter cup and put that in the calorimeter and place the lid on top and the thermometer in the thermometer's hole. There you go. Simple as that.


What error is introduced by including only the water in the calorimeter as the surroundings?

By considering only the water in the calorimeter as the surroundings, the error introduced is neglecting the heat exchange between the water and the actual surroundings outside the calorimeter. This can lead to an inaccurate measurement of the heat flow between the system being studied and the surroundings, affecting the calculated heat capacity or enthalpy change.

Related Questions

What does a calorimeter use the increase in water temperature for?

A calorimeter uses the increase in water temperature to calculate the amount of heat transferred in a chemical reaction or physical process. By measuring the temperature change of the water, the calorimeter can determine the amount of heat absorbed or released by the reaction.


Why is the copper pipe coiled in a calorimeter?

Why not havve it coiled


Why is it that you need a water trap in performing this experiment. why cant you introduce the steam directly to the calorimeter?

A water trap is needed in the experiment to prevent any liquid water from entering the calorimeter. Introducing steam directly to the calorimeter can lead to water droplets forming and entering the calorimeter, affecting the accuracy of the measurements. The water trap ensures that only dry steam enters the calorimeter, allowing for precise heat transfer measurements.


What does the state symbol mean when written after a chemical compound in a chemical equation?

it means the compound is dissolved in water.


In calculating the heat given off by a reaction in a calorimeter you must account for heat absorbed by?

In calculating the heat given off by a reaction in a calorimeter, you must account for heat absorbed by the surroundings, including the calorimeter itself, any water or solution in the calorimeter, and the air around the calorimeter that may be affected by the reaction. This ensures an accurate measurement of the heat released or absorbed by the reaction itself.


How do you calculate the heat capacity of a calorimeter containing water?

To calculate the heat capacity of a calorimeter containing water, you can use the formula Q mcT, where Q is the heat absorbed or released, m is the mass of water, c is the specific heat capacity of water, and T is the change in temperature. By measuring the temperature change when a known amount of heat is added or removed from the water in the calorimeter, you can determine the heat capacity of the calorimeter.


Why is it required to tap the hot metal with a tissue paper before placing the hot metal in the calorimeter?

Tapping the hot metal with a tissue paper removes excess water or moisture on the surface, ensuring that only the thermal energy from the metal is transferred to the water in the calorimeter. This helps to prevent any additional heat transfer that may affect the accuracy of the calorimetry experiment.


Why did you need to transfer the metal quickly from the hot water bath to water in the styrofoam cup calorimeter?

You need to stir the water because the heat energy coming off whatever you put into the calorimeter (whether it be food, metal, etc.) won't evenly distribute its heat throughout the water, and therefore the temperature reading won't be as accurate. If you stir it, the heat will be more evenly "mixed in" with the water, so to speak, and you will get a more accurate reading.


What is the principle of Bunsen calorimeter?

The Bunsen calorimeter principle is based on the law of conservation of energy, where the heat released or absorbed in a chemical reaction is equal to the heat gained or lost by the surrounding water in the calorimeter. By measuring the temperature change of the water, one can calculate the heat exchanged in the reaction.


What measuring tool would be use to measuring the energy gain or lost when sunlight is absorbed by a tank of water?

A calorimeter is typically used to measure the energy gained or lost when sunlight is absorbed by a tank of water. This device can measure the changes in temperature of the water to calculate the energy transferred.


What is the importance of wiping the ice before introducing it to the water in the calorimeter?

The specific heat of water is different from the specific heat of ice and so 'wet ice' into a calorimeter experiment can increase the mass of water in the calorimeter and become a source of unaccuracy.


How do you use a calorimeter?

A calorimeter is used to keep heat contained in a single place as the calorimeter absorbs very little heat and the amount it absorbs can easily be calculated. To use the calorimeter heat the liquid you want (or cool) and place it in the calorimeter cup and put that in the calorimeter and place the lid on top and the thermometer in the thermometer's hole. There you go. Simple as that. A calorimeter is used to keep heat contained in a single place as the calorimeter absorbs very little heat and the amount it absorbs can easily be calculated. To use the calorimeter heat the liquid you want (or cool) and place it in the calorimeter cup and put that in the calorimeter and place the lid on top and the thermometer in the thermometer's hole. There you go. Simple as that. A calorimeter is used to keep heat contained in a single place as the calorimeter absorbs very little heat and the amount it absorbs can easily be calculated. To use the calorimeter heat the liquid you want (or cool) and place it in the calorimeter cup and put that in the calorimeter and place the lid on top and the thermometer in the thermometer's hole. There you go. Simple as that.