Asample of water in equilibrium with its vapor in a closed 4 l container has a vapor pressure of 26.7 torr at 27°c. the container's volume is increased to 9 l at constant temperature and the liquid/vapor equilibrium is reestablished. what is the vapor pressure?

Acharge q experiences no net force at a particular point in space. which of the following situations described below must always be true? -there are no other charges nearby. -if there are other charges nearby, they must all have the same sign as q. -if there are other charges nearby, they must all have the opposite sign of q. -if there are other charges nearby, the total positive charge must equal the total negative charge. -none of the above