Part A A7.0 g ice cube at -10 °C is in a rigid, sealed container from which all the air has been evacuated. The specific heat at constant volume of steam is 1500 J/kg K. How much heat is required to change this ice cube into steam at 210 °C? Express your answer to two significant figures and include the appropriate units. Q = Value Units Submit Request Answer

A 3.00 L tank contains air at 3.00 atm and 20.0° C. The tank is sealed and cooled until the pressure is 1.00 atm. Part A What is the temperature then in degrees Celsius? Assume that the volume of the tank is constant. Express your answer in degrees Celsius. T = Submit Part B V = ΑΣΦ Submit Request Answer If the temperature is kept at the value found in part A and the gas is compressed, what is the volume when the F Express your answer with the appropriate units. μA Value Request Answer Units ≈ ? ? O

Consider an ideal gas at 27.0 degrees Celsius and 1.00 atmosphere pressure. Imagine the molecules to be uniformly spaced, with each molecule at the center of a small cube. Part A What is the length L of an edge of each small cube if adjacent cubes touch but don't overlap? Express your answer numerically in meters. ► View Available Hint(s) L = for Parval for PartAddo for Part Submit redo for Part A reset for Part A keyboard shortcuts for Part A help for Part A m

Cons The value of specific heat for copper is 390 J/kg · C°, for aluminun is 900 J/kg · C°, and for water is 4186 J/kg · C°. Part A What will be the equilibrium temperature when a 265 g block of copper at 255 °C is placed in a 145 g aluminum calorimeter cup containing 875 g of water at 15.0 °C? Express your answer using three significant figures. να ΑΣφ T = °C %3D

R Review I Constants Part A A container holds 1.0 g of argon at a pressure of 8.0 atm. How much heat is required to increase the temperature by 100° C at constant volume? Express your answer with the appropriate units. H HẢ Q = Value Units %3D Submit Request Answer Part B How much will the temperature increase if this amount of heat energy is transferred to the gas at constant pressure? Express your answer in kelvins. ΑΣφ K AT =

A diving bell is a 5.0 m-tall cylinder closed at the upper end but open at the lower end. The temperature of the air in the bell is 30 °C. The bell is lowered into the ocean until its lower end is 100 m deep. The temperature at that depth is 10°C. Part A How high does the water rise in the bell after enough time has passed for the air to reach thermal equilibrium? Express your answer with the appropriate units. h = Submit Part B μA Value Request Answer Units ? A compressed-air hose from the surface is used to expel all the water from the bell. What minimum air pressure is needed to do this? Express your answer with the appropriate units.

In a container of negligible mass, 0.300 kg of ice at an initial temperature of -25.0°C is mixed with a mass m of water that has an initial temperature of 80.0°C. No heat is lost to the surroundings. Part A If the final temperature of the system is 19.0°C, what is the mass m of the water that was initially at 80.0°C? Express your answer with the appropriate units. m = Submit μA Value Request Answer Units ? Review

Part A The value of specific heat for copper is 390 J/kg Co, for aluminun is 900 J/kg. C°, and for water is 4186 J/kg. Co. What will be the equilibrium temperature when a 235 g block of copper at 235 °C is placed in a 145 g aluminum calorimeter cup containing 865 g of water at 14.0°C? Express your answer using three significant figures. T = ΜΕ ΑΣΦ 0 ? °C

For the machine element shown, locate the y coordinate of the center of gravity.

23.0 g of copper pellets are removed from a 300 degree C oven and immediately dropped into 100 ml of water at 25 degree C in an insulated cup . what will the new water temperature be? express answer in degree C