Ireally don't
if the thermal energy of the system increases by 400 j, and 1,100 j of heat were added to the system, how much work did the system do?

700 j

400 j

1,100 j

1,500 j

zfoods? ok, pressure is used to keep the heat inside and to keep the food perfect.

the number of protons in the nucleus of a given element. has slight luster and conducts electricity at high temperatures like metal.but like a nonmetal,boron is brittle and does not conduct electricity well at low temperatures. in graphite, carbon is a soft,brittle solid.it is reflective,ductile,or malleable.