Question

change in the physical state of any matter can be caused by either of the following first by changing temperature second by changing pressure third by changing both temperature and pressure give one example of each

Answer 1

by changing temperature ---
ice is turned into water on decreasing the temperature. hence , state is changed .
by changing pressure,
LPG is converted into liquid form by compressing gas that is increasing pressure.
by changing temp. and pressure ,
in cold drinks , gas is compressed and temp is decreased.

Answer 2

Answer:

On reducing the temperature, or cooling water we get ice. Change in state from liquid( water) to solid(ice) takes place. Decreasing pressure can cause the melting of some type of rocks. On increasing pressure and decreasing temperature, a substance in a gaseous state change into a liquid state.