Mercury and Alcohol are two common liquids used in thermometers. The boiling point of MERCURY is 3570C, while its freezing point is -390C. For ALCOHOL, the boiling point is 780C and the freezing point is -800C. It is required in a laboratory to make measurements which are in the region of -600C. Which type of thermometer would be more suitable?

the potential energy of the reactants is 200j.

from the energy diagram, the energy of the product formed is 350j; this means that, this reaction is an endothermic reaction, because it absorbs energy from its environment.

the temperature of the gas, in k, not celsius.

the formula for the conversion of temperature from degree celsius to kelvin is:

the sample of water at is converted to kelvin temperature by using the above formula as:

on comparing the two samples of water at or we can say that at and at respectively. the difference between the temperatures of two samples of water is:

hence, one can say that the sample of water at is greater than the sample of water at by .