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How can find out the entropy of fusion? What is its entropy of vaporization if its enthalpy of vaporization at its normal boiling point of 30.6Kis 950Jmol-1.
The magnet's magnetization vector is primarily at an angle of 30° with the direction of the external field. Determine the magnetic torque applied on the magnet. (Enter the magnitude of torque.)
Evaluate the values of w, ΔU, ΔH, ΔS, and ΔG for the process. Can you use the sign of ΔG to estimate whether the process is spontaneous? Explain.
The charge of uniform density 50 nC/m^3 is distributed all through within of a long non-conducting cylindrical rod of radius 5.0 cm. Find out the magnitude of the potential difference of point A (2.
The precipitate is then filtered from the solution, dried, and weighed. When 20.0mL of a 0.250 (NH4)2S solution is added to a 150.0mL of a solution of Cu (NO3)2,a CuS precipitate forms.
In a titration a 1.0 g sample of plant material containing oxalic acid, H2C2O4, requires 24.0 mL of 0.0100 M KMnO4 to reach the equivalence point. Describe the percentage of oxalic acid in the sa
A charge of around 20 nC is distributed uniformly all along the x-axis from x = -2.0 m to x = +2.0 m. Determine the electric potential (relative to zero at infinity) at the point x = 5.0 m on the x-
Find probability that sample mean of the 36 households is more than $175.00? Suppose standard deviation of population is $32.
Determine the change in entropy when 2mol of nitrogen gas expands isothermally and reversibly from volume of 25 liters to a volume of 150 liters?
A simple pendulum oscillates having small amplitude of 4.0o. Determine what fraction of time does it spend between -2o and 2o?
Manufacturing of semiconductor chips makes 2% defective chips. Suppose chips are independent and that the lot has 1000 chips.
A charge Q is uniformly distributed all along the x axis from x = a to x = b. When Q = 45 nC, a = -3.0 m, and b = 2.0 m, determine the electric potential difference (relative to zero at infinity) a
Determine the minimum coefficient of static friction needed between the ladder and the ground in such a way the ladder doesn’t slip?
A uniform board is leaning against the smooth vertical wall. The board is at an angle over the horizontal ground. The coefficient of static friction among the ground and the lower end of the board i
A granite wall consists of a thickness of .50 m and a thermal conductivity of 2.1. The temperate on one face of the wall is around 5.2 and 20.0 on the opposite face. Determine how much heat is trans
Determine at what angle of incidence is sunlight fully polarized upon being reflected from the surface of the lake: i) In the summer ii) In the winter when the lake water is ice-covered.
When the molar extinction coefficient of the protein is 349 M/cm at 260 nm determine the molar concentration of the protein and the percentage of uv light transmitted through the solution.
Where mean number of defective prodcuts produced in factory in one day is 4. Find probability that in the given day there are any defective products ?
Determine the radius of curvature for this lens if you are looking at an object a distance of 56.5 mm from your eye's lens. (All incident light rays should still strike the light-receptive cells at
A pipe of water of varying diameter is 1 cm in internal diameter at point A, where the speed of the water is viewed to be 4.0 m/s. At point B, the internal diameter is 4 cm. Determine at what speed
A 1 ns laser pulse from a neodymium-YAG laser, at 532 nm, consists of 5 J. i) Determine the energy and momentum of each photon.
Assume that an atom consists of two energy levels at -3.4 eV and -1.51 eV. If electrons form a transition from the upper to the lower of these levels, determine the wavelength of the emitted photon?
In a double slit experiment having two slits of width 1.0 micro meters spaced 4 micro meters apart, assume that a beam of protons is incident on the slits after being accelerated from rest via a pot
Methane gas is expanded adiabatically and reversibly from a volume of 1.43L, at a temperature of 25C and a pressure of 3 bars, until the volume is 2.86L. The heat capacity Cp of methane can be
What does this experiment tell us about the molar heat capacity of copper? When a 30g tin slug is taken from a beaker of boiling water at 100Cand dropped into a beaker containing 45g of ice tempera