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Calorie - Wikipedia


Calories are units of energy. Various definitions exist but fall into two broad categories. The small calorie or gram calorie (symbol: cal) is the approximate amount of energy needed to raise the te...

counting calories


Counting calories Back to main heat and temperature page. calorie: 1 calorie will raise 1 gram of water 1 degree Celsius. If 1 g of water is given 2 calories, ... at 70 degrees Celsius. How many calories are needed to get the sample to boiling?

What is calorie (cal)? - Definition from WhatIs.com


The calorie (symbolized cal) is a unit of heat occasionally used in the ... When 1 cal of heat energy is transferred to one gram (1 g) of pure liquid water, the temperature ... When the temperature of 1 g of pure liquid water falls by 1º C or 1º K, that ... required to raise or lower one kilogram (1 kg) of pure liquid water by 1º C or ...



The calorie was defined so that the heat capacity of water was equal to one. ... is the number of calories needed to raise the temperature of one gram by 1<sup>o</sup>C.

Specific Heat Capacity - KentChemistry HOME


C = heat capacity (J <sup>o</sup>C<sup>-1</sup> g<sup>-1</sup> or J K<sup>-1</sup> g<sup>-1</sup>) ... Solving for the Specific Heat of a Metal that is dropped in water. ... Determine the final temperature when a 25.0g piece of iron at 85.0°C is placed into 75.0grams of water at ... will be the final temperature of the ethanol if 3240 J was needed to raise the temperature of the ethanol?

Q & A: Heat capacity of water | Department of Physics | University of ...


How much energy is required to heat 100 milliletres of water to 100 degrees celsius? ... If the water starts at 99 degrees Celsius, it takes only 100 calories to raise the ... The amount of heat required to change one gram of water's temperature ... 100 degrees Celsius is a very special temperature for pure water, as that's the...

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www.pstcc.edu/departments/natural_behavioral_sciences/Web Physics/Chapter12.htm

If the same unmarked thermometer is placed in pure water and heated, the mercury level ... How much is this difference in Fahrenheit scale? ... 1 kcal is the amount of heat energy that can raise the temperature of 1kg of pure water by ... Example 7: A 65-gram piece of aluminum at 180°C is removed from a stove and placed ...

How can I calculate the energy required to cause a temperature rise?


... heat of water is 1.0 cal/g°C. How much energy is required to raise the temperature ... heat means that it takes 1.0 calories of heat to warm 1 g of water up by 1°C. So ... change and the grams of water; do you get a specific heat of 1.0 cal/g°C?

Does water boil faster if you put salt in the water?


However, if you take two identical pots and add one gallon of pure water to one pot and one ... The first is how much heat or energy you put into the bucket. ... a lot of energy to raise the temperature of water 1°C; in fact, the calorie is defined as the amount of energy that it takes to heat one gram of water to 1°C. Not to digress, ...



0 C is the normal freezing point temperature of water; 100 C is the normal ... per gram<sup>-1</sup> Kelvin<sup>-1</sup> (J/g-K); Calorie - The specific heat of water = 4.184 J/g-K ... SI unit for molar heat capacity is joules per mole<sup>-1</sup> Kelvin<sup>-1</sup> (J/mol-K). Btu (British thermal unit) - The amount of heat needed to raise the temperature of 1 lb water by 1 F.

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Heat Energy Required to Turn Ice into Steam by Ron Kurtus ...


Nov 8, 2014 ... At those two temperatures, the heat energy goes into changing the state or ... to change the temperature of 1 gram of water by 1 Celsius degree. ... 1. Heating ice. How much heat would be required to raise 50g of ice to its melting point? ... that means that 1.00 calorie is needed to raise 1g of water 1<sup>o</sup>C. Thus, ...

calorie - Infoplease


The calorie, or gram calorie, is the quantity of heat required to raise the temperature of 1 gram of pure water 1°C. The kilocalorie, or kilogram calorie, ... The amount of heat energy needed to effect a 1°C temperature increase in 1 gram of water ...

How many calories are needed to raise the temperature of 50 g of ...


1. How many calories are required to raise the temperature of 5 grams of water ... the specific heat of water so that the units of degrees and grams both cancel out.