Evaluate the amount of heat lost by the hot water

Reference no: EM13516858

Calculate the amount of heat lost by the hot water and the heat gained by the cold water. The difference, representing the heat gained by the calorimeter, divided by the corresponding temperature change, gives the "water equilvalent" or "correction factor" of the calorimeter. The units associated with this factor must be J/deg C.

Data:
We mixed 50 ml of room temp water (21.9 deg C) in a calorimeter with 50 ml of water that was heated (64.3 deg C).
Next we took readings of temps every 30 seconds in degrees Celsius:
41.9, 41.7, 41.5, 41.4, 41.1, 41.0, 40.8, 40.7
We repeated this and got: Temp of cold H20: 22.2, Temp hot H20: 46.5
After mixing: 34.0, 33.8, 33.6, 33.5, 33.5, 33.4, 33.3, 33.3

Reference no: EM13516858

Questions Cloud

Explain the maximun number of moles of pbcl2 : Find the maximun number of moles of PbCl2 that can be dissolved in 1.00 L of 0.30 M NaCl(aq) at 25 degrees celsius, given that Ksp = 1.7 x 10^-5 fpr PbCl2 at 25 degrees celsius.

Calculate the amount of heat loss though a glass window : Calculate the amount of heat loss though a glass window made of a single pane of glass 0.100 in. thick, if the temperature inside the room is 70F and outside is 32 F

Explain molar enthalpy of neutralization of hcl : Using your data, determine two values for (delta)H neutralization, then calculate an average value. The value should be determined and reported as "Molar Enthalpy of Neutralization of HCL", with units of kJ/mole HCL.

Prepare a payroll register for the weekly payroll : Prepare a payroll register for the weekly payroll. (Use the wage-bracket withholding table in the text for federal income tax withholdings.

Evaluate the amount of heat lost by the hot water : Calculate the amount of heat lost by the hot water and the heat gained by the cold water. The difference, representing the heat gained by the calorimeter, divided by the corresponding temperature change

Find the amount of the heat that flowed into or out of gas : A gas in a cylinder is held at a constant pressure of 2.20×10^5 Pa and is cooled and compressed from 1.70m^3 to 1.40m^3. Find the amount of the heat that flowed into or out of the gas

Describe stronger intermolecular dipole : From each pair below, select the molecule that will display stronger intermolecular dipole-dipole forces in a sample of the pure substance.

Explain the values of k for the equilibria established : Find the values of K for the equilibria established when aqueous solutions of the following are mixed.

Obtain the internal energy of the gas : Helium, the second most abundant element in the universe, can exist as a monatomic gas. What is the internal energy of the gas

User Account

All Pages