If water is at -10 °C and energy is added to the water until it is 50 °C while maintaining a constant pressure of 760 mmHg
describe the phase change of the water?
A. Solid to vapor. B. Solid to liquid. C. Liquid to solid. D. Liquid to vapor

1. they vary with a higher number because boiling is way hotter than melting

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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