How many degree should we increase the temperature
A closed 5.00 L flask contains 3g of mercury. The system is all atroom tepmerature of 25 degree C. By how many degree should we increase the temperature of the flask to triple the mercury vaporpressure? (ΔHvapfor mecury is 59.0kJ/mol.)
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How much heat in kJ is needed is to convert 826 g of ice at -10degrees Celsius to water at 100 degrees Celsius? The specific heatsof ice and water are 2.03 and 4.184 J/g x degrees Celsiusrespectively. The heat fusion of water is 6.01 kJ/mol.
Find the stiffness of the isolator that is necessary to reduce the force transmitted to the floor to 6,000 N over the operating-speed range of the engine.
A package is sliding from rest down an incline at an angle phi, and encounters a rough section that starts at height 2h and ends at height h. The starting point for the package is at height xh, and the kinetic friction coefficient between the pack
A potential difference of 30.0 V is applied across a wire of cross-sectional area 5.01 mm^2 and length 929 km. The current passing through the wire is 2.311×10^-3 A.
Carbon dioxide goes from a solid to a gas at -78 degreesCelsius. The molar heat of sublimation is 25.2 kJ/mol. In one experiment, 20.5 g of dry ice is placed in an insulated,isolated container with 500g of water at 25 degrees Celsius.
A 0.050-kg ball at the end of a string rotates at constant speed in a vertical circle with a radius of 0.23 m. What is the maximum speed of the ball so that the tension is not to exceed 12 N?
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