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A sample which is having 2.50 mol of an ideal gas at 298 K is expanded reversibly and isothermally from an initial volume of 10.0 L to a final volume of 50.0 L.
At perigee its distance from the center of the planet is around 22,500 km and its speed is 4250 m/s. At apogee its distance from the center of the planet is around 24100 km and its speed is 3940 m/s
The molar enthalpy change for the reaction H2 O(l)→ H2 O (s) is ΔHo =-6kJ/mol. The pressure is 1 bar and the temperature 0C. The density ofH2 O (s) is 0.89 g/cm3. The de
The two 5 cm diameter metal disks are separated through a .2mm thick piece of paper i) Determine the capacitance? ii) Determine the maximum potential difference among the disks
Calculate the percentage of aspirin recovered from your commercial aspirin tablets crystallization. You can assume that 3 aspirin tables should contain 975 mg of pure aspirin. How do
Sound waves can be given by equations of form y=20sin(3t+θ). Find what kind of interference results when sound waves modeled by equations y=20sin(3t+90) and y=20sin(3t+270) are combined.
A circular loop of wire having radius 15 cm moves at a speed of 8.5 m/s in the direction of a 0.14 T uniform magnetic field, perpendicular to the plane of loop. Determine the emf induced in the loop
Determine the pressure when the volume of the gas is reduced to one-eighth (0.125) of the original value at the same temperature? At 46°C a sample of ammonia gas exerts a pressure of 5.3
Suppose the specific heat capacity of the coffee is the same as that of the water. The heat of fusion of ice is 6.0 kJ/ mol. Determine the temperature of the coffee after the ice melts.
An ant walks from the center in the direction of the edge of a turntable of radius 15cm. When the coefficient of friction between the ant's feet and the turn-table is .3, at what radius does the ant
Arrange the following in order of their increasing SN2reactivity with NaCN: bromoethane,1-chloro-3,3-dimethylpentane,1-clpro-2,2-dimethylpentane and2-bromo-2-methylpentane.
Assume that the automobile rounds a curve of radius 90m. At what speed of the automobile will the coins start to slide? The curve isn't banked.
Illustrate the structure of a meso form of1,3-diclorocyclopentane.Take particular care to indicate three-dimensional stereo chemical detail property.
Determine the difference between the angular speeds of the wheels on the left and right sides of the car?
Determine the enthalpy change in the kJ when 27.0 g of water is cooled from 37.0 degree C to 7.30 degree C? Explain is the process endothermic or exothermic?
Determine the linear equation which provides maximum healthy weight y for person whose height is x inches over 4 feet 4 inches. x = 0 corresponds to 4 feet 4 inches and x = 8 to 5 feet,etc.
If the centrifuge reaches an angular speed of 2.2 rad/s, the trainee undergoes a net acceleration equivalent to 4.9 times the acceleration due to gravity. (i) Determine how long is the arm of the ce
Determine the change in internal energy of a system that absorbs 0.782 kJ of heat from its surroundings and has 0.235 kcal of work done on it?
Determine the Hydrogen ion concentration in the water in moles/L when 2g of sodium bicarbonate are added to distilled water and the pH is adjusted to pH 9 by the addition of a base.
As the wind's strength gradually rises, the turbine experiences a constant angular acceleration of 0.170 rad/s2. After making 2801 revolutions, the angular speed is 132 rad/s. (i) Determine the init
Calculate the temperature and pressure of the triple point of sulfur dioxide. The temperature dependence of vapour pressure of solid sulfur dioxide can be approximately represented by the relation l
Determine how much energy is free in the explosion? Avoid effects due to the gravitational force.
Suppose that the reaction takes at 345 K and 355 K. Discuss what must the activation energy be for the rate constant to double as described? The rate constant of some reactions double with every 10
In the reaction 2A + B YIELDS 3C + D, MM(A)=52 g/mole, MM(B)=75 g/mole, MM(C)=28. Which reactant is the limiting reagent, and what is the theoretical yield of C in grams if 206 g of A and 175 g of
A piece of aluminum having a hole of 1.5mm diameter at 30 degrees Celsius, determine what would be the size of the hole when the metal is heated to 500 degrees.