What happens in a change in temperature as it is heated

If the force applied to an object remains constant, is more power needed for the object to move faster ? explain

On a day when the barometer reads 75.23 cm, a reaction vessel holds 250 ml of ideal gas at 20 celsius. an oil manometer ( ρ= 810 kg/m^3) reads the pressure in the vessel to be 41 cm of oil and below atmospheric pressure. what volume will the gas occupy under s.t.p.?

Observations show that interstellar clouds can have almost any shape and