Describe the concentration of cacl2 in mass percent
An (aq) CaCl2 solution has a vapor pressure of 81.6mmHg at 50 degrees C. the vapor pressure of pure water at this temp is 92.5 mmHg. what is the concentration of CaCl2 in mass percent?
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A rigid tank contains 0.1-kg of air at 300 kPa and 300 kelvin. The air is now heated until the pressure doubles. determine the a) the final pressure in the tank (kPa); b) the volume of the tank (m^3).
A container of an ideal gas originally at 30 degrees C is heated to a temperature of 317 C. By what factor does the pressure increase?
After everything has come to equilibrium, by how much has entropy of both water and the copper changed? Explain why the coating of ice that initially forms around the copper is irrelevant.
Batteries are rated in terms of ampere-hours (A h). for example, a battery that can produce a current of 2.00 A for 3.00 h is rated at 6.00 Ah. a.) What is the total energy, in kilowatt-hours, stored in a 12.0-V battery rated at 55.0 Ah?
Determine the exergy transfer accompanying heat and the exergy destruction, each in Btu, for an enlarged system that includes the air and the wall, assuming that the state of the wall remains unchanged.
Determine the mass flow rate of fuels in grams per second from the gasoline tank to the cars fuel injection systems and the time in hours to empty the tank.
Imagine that you have a gas confined in an insulated cylinder by a piston. Imagine that you suddenly push hard on the piston, compressing the gas to one-half its volume.
Using data tables and the answer to (A), calculate ?H°f for sucrose.C) The rise in temperature of the calorimeter and its contents as a result of the reaction is 1.743 K. Calculate the heat capacity of the calorimeter and its contents.
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