For ΔEsys to always be -, what must be TRUE? Group of answer choices
A) q = w
B) +q > -w
C) +w > -q
D) -w > +q

D. -w > +q must be true in order to make the ΔE negative.

Explanation:

As we cannot find the internal energy as such, we can find the change in internal energy, that was accompanied by the change in the system.

The change in internal energy of the system can be found by means of transfer of work or heat out of a system or into the system and it is given by the equation,

ΔE = q + w

For ΔE must be negative,

If q = w then ΔE = 0

If +q > -w then ΔE = + ve

If +w > - q then ΔE = +ve

If -w > +q then ΔE = -ve

So option D is the answer.

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.