A cylinder is initially filled with saturated vapor mixture of R-134a at a specified pressure. Heat is transferred to the cylinder until the refrigerant vaporizes complately at constant pressure. The initial volume, the work done and the total heat transfer are to be determined (x1 = 0,25 m = 0,2 kg, p = 200 kPa)

There is a single path for electrons. the current decreases when additional resistors are added. the current will be the same in each resistor. these statements best describe a(n) circuit.

What is a property of a double replacement reaction

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.