Which answer choices are true statements about the properties of an enclosed gas?
select all that apply.
if the temperature of a gas remains constant, then increasing its volume will decrease its pressure.
if the volume of a gas remains constant, then increasing its temperature will increase its pressure.
if the pressure of a gas remains constant, then increasing its temperature will increase its volume.
if the temperature of a gas remains constant, then increasing its volume will increase its pressure

Agroup of students is studying convection current. they fill two identical balloons with the same amount of helium. one balloon is placed in a freezer and the other is in an area with warm air. after 10 minutes, the balloon are released from a height of 1 meter. which of the following to the students most likely observe? a) the warm balloon expands and rises. the cold balloon shrinks and sinks b) the balloon both rise. the cold balloon is larger than the warm balloon c) the cold balloon expands and rises. the warm balloon shrinks and sinks d) the balloon rise at the same rate. both balloons are the same size

How do you identify the anode on a power source such as a battery? how do you identify the cathode? how are terms anion and cation?

At 20°c, a sample of h2o liquid and a sample of co2 gas each have the same average kinetic energy. why is one a liquid and the other a gas at this temperature?