What is the reason for heat transfer from one substance to another?
difference in pressure
difference in volume
difference in temperature
difference in mass

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

How much carbon is stored in the atmosphere as co2

High-pressure liquid chromatography (hplc) is a method used in chemistry and biochemistry to purify chemical substances. the pressures used in this procedure range from around 500 kilopascals (500,000 pa) to about 60,000 kpa (60,000,000 pa). it is often convenient to know the pressure in torr. if an hplc procedure is running at a pressure of 1.03×108 pa , what is its running pressure in torr?