6. draw a velocity-time graph for an object originally traveling at -3 m/s. the object
then slows down and turns around.

Question

Physics: 6. draw a velocity-time graph for an object originally traveling at -3 m/s. the object then slows down and turns around.

natannale · Accepted Answer

b. At fixed temperature and pressure, the volume of a gas is inversely proportional to the number of moles of that gas.

Explanation:

Statement b is wrong.

We can prove it by looking at the ideal gas equation:

pV=nRT

where

p is the gas pressure

V is the gas volume

n is the number of moles of the gas

R is the gas constant

T is the absolute temperature of the gas

If we have a gas at fixed temperature T and fixed pressure p, then we see that the relationship becomes

$V\propto n$

which means that the volume is directly proportional to the number of moles of the gas: so, the statement is wrong.

6. draw a velocity-time graph for an object originally traveling at -3 m/s. the