Determine the heat change when a system consisting
Determine the heat change when a system consisting of a 5.50kg iron ball at the 37.0 degree C. is placed in a large reservoir of water at17 degree C.
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Determine the minimum amount of heat that must be dissipated to the environment when one ton of air is separated into the nitrogen (21% by mole) and oxygen (79% by mole).
When a TV set were laid on its back, what potential difference, acting over a distance of 15 cm, would be required to balance the downward force of gravity so that an electron would remain stationary?
What would be the product of the reaction by using the solubility rules, would you expect there to be a reaction between NaCl and CaCl2?
Nickel consist of an fcc crystal structure. When the Ni atoms at the center of the faces of the cubic cell are replaced by Al atoms, an ordered alloy is obtained. Find out the composition of the alloy (determine how many Al atoms per Ni atom), and
A uniform beam of 1220 N is joined to a vertical wall at one end and is supported through a cable at the end. A 1960 N crate suspends from the far end of the beam. By using the data, determine: i) The magnitude of tension in the wire.
At STP a balloon filled with the 1.00 mole of helium gas is heated to 298 K at the constant pressure. Determine the change in the internal energy. (cHe= 5.20 J/g degrees Celsius)
A laser beam is incident on the two slits having a separation of 0.220 mm, and a screen is positioned 4.80 m from the slits. When the bright interference fringes on the screen are separated by 1.61 cm, determine the wavelength of the laser light?
When one more of H2O(g) is condensed to one mole of H2O(l) at 1.00 atm and100.oC, 40.66 kJ of heat is released. One mole of H2O (g) at 1.00 atm and 100.oC occupies a volume of 30.6L.
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