The higher the pressure on a liquid, the higher its boiling point temperature. true false

True, p1/t1=p2/t2. Pressure is related to temperature at which it boils so pressure does affect the boiling point.

True.

At the surface of the earth for example, the atmospheric pressure is 1 atmosphere, and water boils at 100°C, but at lower atmospheric pressure say at hills or mountains water boils at a lesser temperature than 100°C.

Hence the higher the pressure on a liquid, the higher the temperature. 

This is what i found on google “according to the collision theory, the following criteria must be met in order for a chemical reaction to occur: molecules must collide with sufficient energy, known as the activation energy, so that chemical bonds can break. molecules must collide with the proper orientation.” i hope this information you.

4. 50x10= 500m/s 5. 52m/s