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A 100 Watts light bulb is placed in a cylinder equipped with a moveable piston. The lightbulb is turned on for 1.0×10^-2 hour, and the assembly expands from an initial volume of 0.80 L to a final volume of 5.83 L against an external pressure of 1.0 atm. Use the wattage of the lightbulb and the time it is on to calculate the change in energy in joules. (assume that the cylinder and lightbulb assembly is the system and assume two significant figures).
A single crystal of a metal is oriented for a tensile test such that its slip plane normal makes an angle of 65.5° with the tensile axis. Three possible slip directions make angles of 30°, 48°, and 78° with the same tensile axis.
A reaction that is used to propel rockets is N2O4(l) + 2N2H4(l) --> 3N2(g) + 4H2O(g). This reaction has the advantage that neither product is toxic, so no dangerous pollution is released
Predict the order for increasing binding energies of the C(1s) electron for the following compounds giving your reasoning.
What is the Volume of 1.05mol of Benzene (C6H6) at 20.7 degrees C. The density of Benzene is 0.879 g/mL
Calculate the initial rate of the NO reduction at 1100 K if 400.00 mg of NO and 600.00 mg of H2 are confined to a 5.00 L reaction vessel.
The reaction of calcium hydride with water can be used to prepare small quantities of hydrogen gas, as is done to fill weather observation balloons.
Hydrogen gas (H2) and oxygen gas (O2) are the products when an aqueous acidic solution is electrolyzed; each mol of water gives one mol of H2 and half a mol of O2.
Calculate the equilibrium constant for the reaction - flask at a certain temperature according to the reaction
how many grams of NO2 will be produced when 2.0 L of nitrogen at 840 mmHg and 24 C are completely reacted N2+2 O2-----2 NO2
how many enantiomeric pairs are possible for a monobromo derivative of isopentane?
How many grams of acetylene are produced by adding water to 5.0 grams CaC2
The Reaction 2NOCl(g)---->2NO+CL2(g) has rate-constant values for the reaction of NOCl of 9.3x10^-6/s at 350K and 6.9x10^-4/s at 400K. Calculate activation energy for the reaction. What is the rate constant at 435K?
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