Question

36. A. What is the difference between intensive and extensive properties? (Circle one correct answer) a) An intensive property is independent of the amount of the substance, whereas extensive property depends on b) Along with the change of the amount of substance, an intensive property changes faster than extensive property. c) Intensive properties are quantitative properties of substance, while extensive properties are qualitative d) An extensive property is independent of the amount of the substance, whereas intensive property depends on the amount of the substance. properties ofa substance. amount of the substance. B. Classify the following as intensive or extensive propety - volume -heat content -density - electrical conductivity - temperature - boiling point - length - flammability Intensive property Extensive property: 37. You have a sample of a white crystalline substance from vour kitchen. You know that it is either salt or sugar. Although you could decide by taste, suggest another way that you could use to decide. B. A. The Celsius and Fahrenheit scales show different values at a given "hotness or coldness". For example, the freezing of water is indicated as 0 degree on the Celsius scale but as 32 degree on the Fahrenheit scale. Do these two temperature scales ever meet at any single value ? Explain and show your work for credit B. As in part A, at what point do the Celsius and Kelvin temperatures have the same value ? Explain for credit. 39. The coldest temperature ever measured in the United States is-81°F on January 23, 1971, in Prospect Creek, Alaska. A.Convert-81°F to degree Celsius. Show problem set up and express the answer in correct sig figs. B. Convert-81°F to degree Kelvin.

Answer 1

36) (a) is correct. Intensive properties are independent on amount while extensive depens on amount.

Intensive = boiling point , density , temperature, thermal conductivity

Extensive = length, volume,heat content , flamibility

39) A) -81 °F = -63 ℃

B) -81 °F = 210 K