Which statement is true for a cooling curve?
a) it shows how the temperature of the substance falls as heat is removed.
b) it shows how the temperature of the substance changes when heat is applied.
c) it shows the increase in the average kinetic energy of the particles.
d) it shows how heat absorption affects the motion of particles.
the ideal gas law equation is pv = nrt. if n, r, and t are kept constant, what happens to the volume if pressure is increased?
question 11 options:
a)
the volume increases
b)
the volume decreases
c)
the volume remains unchanged
d)
the temperature rises
a 20 liter cylinder of helium at a pressure of 150 atm and a temperature of 27°c is used to fill a balloon at 1.00 atm and 37°c. what is the volume of the balloon?
question 15 options:
a)
2400 liters
b)
2900 liters
c)
3000 liters
d)
3100 liters

Why do you suppose the structural polysaccharide cellulose does not contain branches? why do you suppose the structural polysaccharide cellulose does not contain branches? branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby decreasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby increasing the rigidity and strength of the microfibrils. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into globules, thereby increasing the flexibility and strength of the globules. branches in the molecule would generate side chains that would almost certainly make it difficult to pack the cellulose molecules into microfibrils, thereby decreasing the rigidity and strength of the microfibrils.

Show how to convert the temperature 84.7° c to kelvin. include all steps and label the final answer

1) a. water molecule breaks up into hydrogen and oxygen on passing electricity. does this involve breaking intermolecular or intramolecular forces of attraction. explain b. on boiling water changes to water vapor. does this involve breaking intermolecular or intramolecular forces of attraction. explain methanol evaporates faster than water. contrast the intermolecular forces and the vapor pressures of methanol and water?