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A liquid is irregularly stirred in a well-insulated container and thereby experiences a rise in temperature.
The amount of water in a lake may be increased by action of underground springs, by inflow from a river, and by rain.
If the partition suddenly breaks, show that the initial and final internal energies of the gas are equal.
When an electric current is maintained in an electrolytic cell of slightly acidic water and 1mol of water is electrolyzed into hydrogen and oxygen.
A cylinder with rigid well-insulated walls is divided into two parts by a rigid insulating wall with a small hole in it.
If the cell is kept at a constant temperature of 25°C and 0.1 mol of copper reacts, then how much work is done on the motor?
A container of volume V contains n moles of gas at high pressure. Connected to the container is a capillary tube through which the gas may leak slowly.
The paddle wheel is driven by a slowly falling weight, and both have a temperature of 14.5°C. As a result of the work done by the 0.427 kg .
One mole of a gas obeys the van der Waals equation of state (P + a/v2)(v - b) = RT.
This equation, known as the Griineisen relation, plays an important role in solid-state theory.
How much heat is transferred during an isobaric process in which n moles of gas experience a temperature rise from Ti to Tf?
How much heat per mole is transferred during a process in which the temperature changes from 2 to 3 K?
Calculate the volume expansivity ß as a function of T and P.
If the vessel holding the block of copper has a negligibly small thermal expansivity and can withstand a maximum pressure of 1000 atm.
A block of copper at a pressure of 1 atm (approximately 100 kPa) and a temperature of 5°C is kept at constant volume.
Consider a wire that undergoes an infinitesimal change from an initial equilibrium state to a final equilibrium state.
Calculate the change of surface tension with respect to temperature ?,d?/ d?, at 10°C and 60°C .
From the critical point, 5.2 K, down to the ?-point, 2.2 K, of liquid 4He, the surface tension.
How much work would be done if the gas leaked directly into the atmosphere?
Calculate the work done when the pressure of 1mol of an ideal gas is decreased quasi-statically from 20 to 1 atm.
Is the work done during an infinitesimal portion of this process (called an adiabatic free expansion) equal to P dV?
Calculate the work done upon expansion of 1mol of gas quasi-statically and isothermally from volume Vi to a volume vf.
During a quasi-static expansion of a gas in an adiabatic container, the pressure at any moment is given by the equation PV? = K.
How much work is done by the external force in compressing the gas by an amount dV by raising the piston a distance dy?
Develop ten (10) nutritious food activities that encourage good nutrition to use with young children (no older than 5 years old).