What is the specific heat of sodium metal if 123 J are needed to raise the temperature of 4.00 g sodium by 25.0 °C?

Heena wants to measure the volume of a ball that is 24 cm across. how should she set up her equation?

2kg of refrigerant 134a undergoes a polytropic process in a piston-cylinder assembly from an initial state of saturated vapor at 2 bar to a final state of 12 bar, 80 degree c. a)determine the work for the process in kj. b)sketch the process on a p-v diagram.

If the new moon happens on january 15th, what shape will it be on february 6th?