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Metal weighing 5.10 g at temp 48.6 was placed in a calorimeter into 20ml of water at 22.1 celsius and the final equilibrium temp was found to be 28.2 C what is specific heat?
Wiki User
∙ 10y ago
We will use this equation: q (heat capacity) = spec. heat of water x mass of substance x change in temperature. So, q = 4.184(5.1)(28.2-22.1) = 130.2, and the unit is probably joules. It's okay to use Celsius temperatures here because you're just getting the change in temp, and a Celsius degree has the same magnitude as a kelvin.
Wiki User
∙ 10y ago
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Why is water an excellent material to use in a calorimeter?
Water is an excellent material to use in a calorimeter because it has a very high specific heat, making it very hard for water to raise its temperature even by 1 degree celsius, but as hard as it was to raise the temperature of the water, it is equally as hard to lower the temperature of the water-making it able to effectively retain heat and allowing the other material inside of the calorimeter to absorb that heat.
How would a calorimeter constant be effected if it were made of glass instead of styrofoam?
The Calorimeter Constant is the energy in joules needed to increase the calorimeter container(glass beaker or styrofoam cup) by 1 degree Celsius. Glass has a lower specific heat capacity (J/g)x(Degrees Celsius)than styrofoam. Which means it takes less energy for glass to accumulate or lose heat than it does styrofoam. Therefore a glass calorimeter will have a lower calorimeter constant due to heat(energy) escaping. In a reaction that you're trying to measure change in heat in a solution, a styrofoam cup will hold in the reactions change in heat better and therefore you will be able to calculate the energy absorbed into the cup and add it to the energy calculated in the solutions reaction, while the energy or heat absorbed in the glass will already escaping and so it will be a lesser value(calorimeter constant) that is added to the energy in the solutions reaction..... This was hard to grasp since initially i thought the energy being released from the reaction, into the glass would mean it heats up the glass more than the styro cup, and i thought that it would have more energy to be added to the energy calculated in the reaction
What is the specific heat of chloroform?
.000251cal/gram degree Celsius or .0010542j/gram degree Celsius
What is the final equilibrium temperature when 15 grams of milk at 22 degrees Celsius is added to 185 grams of coffee at 86 degrees Celsius?
If coffee and milk have the same thermal coefficient then: (15*22 + 185*86)/200 = 81 (81,2 rounded off due to significant digits)
What is specific heat of yogurt?
The Cp of yogurt at 20 degrees Celsius is: 3.52 kj/kg/k
A metal object with mass of 19g is heated to 96 Celsius then transferred to calorimeter containing 75 grams of water at 18 Celsius It reaches a temperature of 22 Celsius What is the specific heat?
A metal weighing 50.0 g absorbs 220.0 J of heat when it's temperature increases by 120.0 degrees Celsius what is the specific heat?
0.04
Why is water an excellent material to use in a calorimeter?
Water is an excellent material to use in a calorimeter because it has a very high specific heat, making it very hard for water to raise its temperature even by 1 degree celsius, but as hard as it was to raise the temperature of the water, it is equally as hard to lower the temperature of the water-making it able to effectively retain heat and allowing the other material inside of the calorimeter to absorb that heat.
How is heat measured Identify instruments used to measure heat?
—Thermometers. —Celsius Scale —Kelvin scale —Calorimeter
What mass of water at 25.0 degrees Celsius must be allowed to come to thermal equilibrium with a 4.40 kg gold bar at 100 deg. Celsius order to lower the temperature of the bar to 50.0 degrees Celsius?
8.8kg...i guessed
How would a calorimeter constant be effected if it were made of glass instead of styrofoam?
The Calorimeter Constant is the energy in joules needed to increase the calorimeter container(glass beaker or styrofoam cup) by 1 degree Celsius. Glass has a lower specific heat capacity (J/g)x(Degrees Celsius)than styrofoam. Which means it takes less energy for glass to accumulate or lose heat than it does styrofoam. Therefore a glass calorimeter will have a lower calorimeter constant due to heat(energy) escaping. In a reaction that you're trying to measure change in heat in a solution, a styrofoam cup will hold in the reactions change in heat better and therefore you will be able to calculate the energy absorbed into the cup and add it to the energy calculated in the solutions reaction, while the energy or heat absorbed in the glass will already escaping and so it will be a lesser value(calorimeter constant) that is added to the energy in the solutions reaction..... This was hard to grasp since initially i thought the energy being released from the reaction, into the glass would mean it heats up the glass more than the styro cup, and i thought that it would have more energy to be added to the energy calculated in the reaction
Unit for measuring heat?
The SI unit of heat is the Joule. It can also be measured in a calorimeter, where one calorie is the amount of energy needed to raise one gram of water by one degree Celsius.
What is the specific heat of chloroform?
.000251cal/gram degree Celsius or .0010542j/gram degree Celsius
What is the measurement for specific heat?
The unit for specific heat is Joules/g-Kelvin or it can be Joules/g-Celsius J= Joules g= Grams C= Celsius
Will a mixture of water at 20 degrees Celsius and water at 30 degrees Celsius equal?
20o C + 30o C/2= 25o Celsius============heat flows into areas colder until equilibrium is reached, so an average works here
What is the Specific gravity of gasoline vs temperature?
specific gravity of gasoline at 104 celsius
What kind of specific heat does water have?
The specific heat of water is 1 calorie per gram per degree Celsius 1 cal/g/degree celsius
