Answer:
Old and inefficient mining smokestacks contaminate the soils around abandoned mine sites.
Explanation:
A smokestack, is a very tall channel commonly used in many instances to release gases produced by combustion processes directly into the air. These high towers are aimed at dispersing the gaseous pollutants over a wider area thereby minimizing their impact.
Old and inefficient smokestack do not contaminate the soil since they are very high towers that discharge gases directly into the atmosphere. Hence they are not part of the sources of soil contamination in abandoned mines.
In a closed system, as energy is transformed, it is neither lost nor created. Rather, energy is conserved. Is the force that one surface exerts on another surface when two surfaces rub against each other. When parts of a moving system encounter friction, some of the kinetic energy is transformed into thermal energy.
Answer:
Molar volume of gases
One mole of any gas has a volume of 24 dm3 or 24,000 cm3 at rtp (room temperature and pressure). This volume is called the molar volume of a gas.
This equation shows how the volume of gas in dm3 at rtp is related to the number of moles:
volume of gas at rtp = number of moles × 24
Explanation:
hope this will help you
