İdeal buhar sıkıştırmalı soğutma çevriminde 0,18 MPa ile 1 MPa arasında çalışan soğutma makinasında aracı akışkan olarak soğutucu akışkan R134a kullanılmaktadır. Akışkan kütle debisi 0,06 kg/s'dir. a) Soğutulan ortamdan çekilen ısıyı bulunuz. b) Kompresörü çalıştırmak için gerekli gücü bulunuz.

The correct answer is "atomic weight".

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?  

Ch4 and ph3 are both covalent since they are composed both of non-metals.    ch4 is non- polar because of  london forces and has a geometry of tetrahedral  ph3 , on the other hand, is umbrella shaped polar and has dipole-dipole intermolecular force (imf) . since ph3 is polar, it has a stronger imf