Engineering, 09.04.2021 03:20 christopherluckey7

This is a project you can do if you have a bike pump or a syringe (no needle!). When the pump handle is fully-extended, the cylinder of a hand-held bike pump has a volume of 2.0 in3 . If a person holds their thumb over the exit hole (no needles!) and push on the pump handle to compress the air you can increase the pressure in the cylinder. Let us presume that a pressure of 45 lbf/in2 is obtained. Atmospheric pressure is 14.7 psi and the outside temperature is 100 degF. a) Determine the final volume and the final temperature of the gas if the process is done slowly (about 1 hour)
b) Determine the final volume and the final temperature of the gas if the process is done quickly (about 1 second)
c) Be certain to identify and list any assumptions that are needed to answer these questions

Answers: 3

Show answers

Another question on Engineering

Engineering, 03.07.2019 14:10

When at a point two solid phase changes to one solid phase on cooling then it is known as a) eutectoid point b) eutectic point c) peritectic point d) peritectoid point

Answers: 3

Answer

Engineering, 03.07.2019 14:10

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Answers: 3

Answer

Engineering, 04.07.2019 19:10

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?

Answers: 2

Answer

Engineering, 04.07.2019 19:10

Aplate of dimensions 3 m x 3 m is placed 0.37 mm apart from a fixed plate. the plate requires a force of 2n to move at speed of 45 cm/s. evaluate the viscosity of the fluid in between the plates

Answers: 3

Answer

You know the right answer?

This is a project you can do if you have a bike pump or a syringe (no needle!). When the pump handle...

Questions