What is specific heat activity?
What is specific heat activity?
The amount of heat required to raise the temperature of 1 g of a substance by 1 degree Celsius is called the specific heat capacity, or specific heat, of that substance.
How is specific heat measured in the laboratory?
To measure specific heat in the laboratory, a calorimeter of some kind must be used. A calorimeter is a well-insulated container that can measure energy changes. The calorimeter is insulated to reduce the loss or gain of energy to or from the surroundings.
What is the purpose of the specific heat lab?
Purpose: The purpose of this experiment is to determine the specific heat of a metal and compare it to the actual value. Procedure: 1.
Why is specific heat important for engineers?
Engineers use a material’s heat capacity to determine its usefulness for different applications. A material with a low-heat capacity (such as metals) has a greater increase in temperature from absorbing the same amount of heat as a material with a high-heat capacity (such as water).
What are the factors that affect specific heat capacity?
This quantity is known as the specific heat capacity (or simply, the specific heat), which is the heat capacity per unit mass of a material. Experiments show that the transferred heat depends on three factors: (1) The change in temperature, (2) the mass of the system, and (3) the substance and phase of the substance.
What experiment could you do to measure the specific heat capacity of a metal?
Record the temperature of the metal block every minute. After ten minutes the temperature will still rise even though the heater has been turned off and then it will begin to cool. Record the highest temperature that it reaches and calculate the temperature rise during the experiment.
How do you do calorimetry experiments?
Place the thermometer in the calorimeter cup and record the temperature for 3 readings at 30 second intervals. Lift the lid of the calorimeter and drop the pieces of magnesium in, mixing continuously. Record the temperature every 30 seconds until 10 minutes have elapsed.
How do you find the specific heat of a solid experimentally?
The heat capacity C of an object is defined as C = ∆Q/∆T, where ∆Q is the amount of heat required to change the temperature of the object by ∆T. The specific heat c of a substance is the heat capacity per unit mass. The specific heat is measured in J/kg℃ or cal/g℃ or kcal/kg℃.
How specific heat capacity can be experimentally determined?
To determine the specific heat capacity of another metal, for example, iron, one can warm an iron specimen (of measured mass) to 100 °C, and then drop it into the copper calorimeter, which contains water at room temperature, t1 °C, and then measure the final temperature t2 °C to which the iron cools down and the copper …