TECTONIC PLATES
a theory explaining the structure of the earth's crust and many associated phenomena as resulting from the interaction of rigid lithospheric plates which move slowly over the underlying mantle.
VALCONES AND TECTONIC
Most volcanoes form at the boundaries of Earth's tectonic plates. These plates are huge slabs of the Earth's crust and upper mantle, which fit together like pieces of a puzzle. These plates are not fixed, but are constantly moving at a very slow rate. They move only a few centimeters per year.
Answer:
Vapor pressure of pure water: 3.1690 kPa
Explanation:
Vapor pressure is P=0.955(3.1690)=3.0263 kPa
Change in vapor pressure : 3.169-3.0263=0.142 kPa
Answer:
Increases
Explanation:
Both acids and bases can measured
using the pH or pOH scale. Both
scales provide a measure of either
the H+ concentration or the OHconcentration.
Notice that each scale shows were
acids and bases both are located.
• When acids are measured, the
pH is less than 7, but the pOH
is greater than 7.
• When bases are measured,
the pH is greater than 7, but
the pOH is less than 7.
Both scales are dependent on what
ion you are measuring
<u>Answer:</u> The amount of energy required to convert ammonia back to hydrogen and nitrogen is 45.9 kJ
<u>Explanation:</u>
Endothermic reactions are defined as the reactions in which energy is absorbed in the reaction. The enthalpy change of the reaction is positive.
Exothermic reactions are defined as the reactions in which energy is released in the reaction. The enthalpy change of the reaction is negative.
For the given chemical equation:
In the above reaction, the enthalpy change is negative. So, the reaction is exothermic in nature.
For the reverse reaction, the magnitude of the enthalpy change remains the same but sign for it changes.
Hence, the amount of energy required to convert ammonia back to hydrogen and nitrogen is 45.9 kJ
