So its temperature will not rise, since kinetic energy of molecules remains the same. The quantity of heat absorbed or released when a substance changes its physical phase at constant temperature (e g. From solid to liquid at melting point or from liquid to gas at boiling point) is termed as its latent heat.
Boils at -40 C (or F, same same) so colder than that it would be a clear stable liquid.
To find density we have to know the values of density and mass. Here mass is given which i 180g.
we know the formula to find the density is:
Density = Mass / volume
so the density will be 180 / volume = 180g per unit volume
if we know the volume, we can find exact value of density.
C. The design would not be cost-efficient; the plane would require more fuel due to increased thrust from higher drag.
I'm not 100% sure but I think it's false
