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The small calorie, symbol cal (note the lower case c) is the energy required to raise the temperature of 1 gram of water by 1 degree Celsius at 1 atmosphere of pressure. The small calorie is a pre SI metric unit of energy. In SI terms it is equivalent to about 4.2 Joules of energy. The small calorie is also called the gram calorie. If the subject is physics, calorie refers to the gram calorie, the small calorie.

The large Calorie (note the upper case C) is the energy required to raise the temperature of 1 kilogram of water by 1 degree Celsius at one atmosphere of pressure. When the subject is diet, such as food nutritional data, Calorie always means the large Calorie, the kilogram Calorie.

The existence of these two different but related units with the same name is confusing and is an invitation to error. This is unfortunate, but the kilo Calorie is deeply embedded in nutritional literature, and the gram Calorie is embedded in early physics literature, so we are stuck with this situation.

If you are doing physics, try to stay with SI units.
1 joule is needed to raise the temperature of one gram of water by one degree Celcius.

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8y ago
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8y ago

At one atmosphere of pressure, the amount of heat would be 1 calorie, not to be confused with the term used in nutrition which is actually a kilocalorie (1000 calories) although, for simplicity, I suppose, it is called a calorie.

I should mention here that you have said to raise the temperature "to" 1 degrees, not "by" 1 degrees. If the water is at 0 degrees C and is still in the liquid state, the amount of heat to raise it to 1 degree will be 1 calorie. If, however, the water is at 0 degrees C and is in the solid state, more heat will be required to change it to liquid state before the temperature will begin to rise.

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7y ago

Energy to raise 1 g H2O 1 degree C is 1 calorie, or 4.184 joules.

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14y ago

That would be known as a calorie.

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7y ago

One Calorie.

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12y ago

1 calorie

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Q: What is the amount of energy required to raise the temperature of one gram of water by one degree celsius?
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Continue Learning about Chemistry

What is the amount of cooling required to low the temperature of a substance through 1 degree Celsius?

To lower the temperature of 1 gram of water by 1 degree Celsius would be to remove 1 calorie.


What is the amount of heat required to raise the temperature of one cubic centimeter of water on degree on the Celsius scale?

1 kilocalorie


What is the temperature used on laboratory thermometers?

the temperature measured on the laboratory thermometer is from-10degree Celsius to 110 degree Celsius


What is the substances specific heat?

The amount of heat required to increase the temperature of the substance to 1 degree greater than that of the initial temperature of the body!


What does it mean to say that the specific heat capacity of water is greater than that of iron?

Heat capacity is the amount of heat needed to increase the temperature of an element (a given mass) by a temperature unit.Specific Heat Capacity is the amount of heat in Joulesneeded to heat 1kg of an element by 1 degree Kelvin.Joules per Kilogram KelvinIf the SHC of water is higher than that of iron, it means, you need more heat to increase the temperature of 1kg of water in 1 degree Celsius, than the heat you need to increase the temperature in 1 degree Celsius of the same mass of iron.P.S.A Celsius temperature difference is the same as a Kelvin temperature difference. In measuring SHC, we only need to focus on temperature difference rather than the temperature value. Add 273.15 to the Celsius measurement of the temperature to get the Kelvin temperature value.

Related questions

What is specific temperature?

Specific temperature is an amount of heat per unit mass required to raise the temperature by one degree Celsius.


What is the amount of cooling required to low the temperature of a substance through 1 degree Celsius?

To lower the temperature of 1 gram of water by 1 degree Celsius would be to remove 1 calorie.


The amount of heat per unit mass required to raise the temperature by one degree Celsius is?

specific heat


What is the amount of heat required to raise the temperature of one cubic centimeter of water on degree on the Celsius scale?

1 kilocalorie


What is specific heat capacity?

Is the amount of energy that is required to change the temperature of 1kg of a substance by 1 degree Celsius with no state change.


What is the amount of heat required to raise the temperature of a substance through ten degree Celsius?

One calorie is needed to heat 1 gram of water 1 degree Celsius


What is the amount of heat needed to increase the temperature of a certain mass of a substance by 1 degree Celsius?

The heat capacity of a substance is the amount of heat required to raise the temperature of a defined amount of pure substances by one degree (Celsius or Kelvin). The calorie was defined so that the heat capacity of water was equal to one.


What phenomenon does not required the air temperature to be at 0 degree celsius?

Cloud formation does not require the air temperature to be at zero degrees Celsius.


How were calories were made?

calories were never "made." they are simply the amount of energy required to raise the temperature one gram of water one degree celsius.


What amount of heat is required to raise the temperature of one gram of water one degree Celsius?

I believe it is a calorie.One Calorie.


The amount of heat required to raise the temperature of 1 gram of water 1 degree Celsius is called?

The amount of energy required to raise 1 kg of a substance by 1 degree Celsius is called the "Specific Heat Capacity," or just specific heat, of a substance. This is an intensive property of the particular substance.


How are degree Celsius temperature related?

A degree Celsius is a measure of temperature.