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A Pitot tube is placed in a supersonic flow where the freestream temperature is 90°K and the Mach number is 2.5. A normal shock forms in front of the probe. The probe indicates a stagnation pressure of 52 ×103 P a. If the stagnation temperature is 270°K, find the pressure, density, stagnation pressure and velocity of the flow upstream of the shock.
The enthalpy of formation of ethanol, C2H5OH, is 277.o kJ/mol at 298.15K. Calculate the enthalpy of combustion of one mole of ethanol, assuming that the products are CO2 and H2O.
aspartame c14h18n2o5 is a solid used as an artificial sweetener. its combustion produces carbon dioxide gas liquid
what is the lewis structure of the covalent compound that contains one nitrogen atom one hydrogen atom and one carbon
Dry air is bubbled through 25 litres of water at a rate of 15 litres (STP)/min. The air leaving the liquid is saturated with water at 25 degrees celcius and 1.5 atm. How long it will take for all of the water to vaporize.
The Ksp of silver chloride (AgCl) is 1.8 x 10-10. If a solution had a [Cl-] = 0.0010 M, what would be the equilibrium concentration of Ag+ in the solution with some solid AgCl in contact with the solution
Consider the accompanying energy diagram. Does this diagram represent an increase or decrease in the internal energy of the system?
A certain compound is a white solid with a melting point of about 780 deg C. When it melts it conducts electricity.a) What type of solid is this?b) In which solvent is it likely to be more soluble, water or CCl4. Explain.
A microwave oven operates at 2.40 . What is the wavelength of the radiation produced by this appliance?
4.236-g sample of a hydrocarbon (CxHy) is combusted in O2 completely to give 3.810 g of H2O and 13.96 g of CO2. What is the empirical formula of the hydrocarbon?
The label on an aerosol spray can contains a warning that the can should not be heated to over 130°F because of the danger of explosion due to the pressure increase as it is heated.
if the initial water level in the graduated cylinder is 21.2 ml and the level rises to 27.7 ml after the object is placed in the cylinder, what is the volume of the object?
Suppose 35.68 mL of 0.01015 M KMnO4 is required to titrate 3.576 g of a sample containing C2O42-. What percentage Oxalate is present in the sample?
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