Question

6. What is strange about the behavior of water between 0 and 4 degrees Celsius? How specifically does it differ from the behavior of most substances?

7. How many moles are in 12 grams of Carbon (C)? Carbon has an atomic mass (molecular mass) of roughly 12.

8. What is considered standard temperature and pressure, STP?

9. What temperature is absolute zero on the Fahrenheit, Celsius and Kelvin scales?

10. According to the ideal gas law, the pressure in an ideal gas depends on what 3 other variables?

11. How is the temperature of an ideal gas related to the average kinetic energy of the molecules in the gas?

Answer 1

Solution :

1. The density of most of the substance decrease with increment in temperature while for water the DENSITY INCREASES from 0 to 4 degree Celsius. It density is highest at 4 degree Celsius.

2. As the atomic mass of carbon is 12 amu. So number of moles In 12 grams will be equal to 1 mole. For converting molecular mass of any substance into moles directly write grams at the place of amu.

3. Standard temperature = 0° Celsius

Standard pressure = 1 bar = 100000 Pascal's

4. Absolute zero means 0 Kelvin.

For Celsius scale = -273.15° C

Fahrenheit scale = -459.67° F