2H2O➡2H2+O2 is the correct balanced equation of decomposition
Because decomposition means a molecule breaking down in to segments
If the change in Gibbs free energy for a process is positive, the corresponding change in entropy for the universe will be positive.
<h3>What is Gibbs free energy?</h3>
This is defined as the energy used by a substance involved in a chemical reaction.
The Gibbs free energy and entropy has a direct relationship which is why a positive gibbs free energy will result in a corresponding positive entropy.
Read more about Gibbs free energy here brainly.com/question/9179942
Given :
Temperature, T = 55° C = ( 55 + 273 ) K = 328 K .
Volume of container, V = 28.9 dm³ = 0.0289 m³ .
Pressure, P = 144 kPa = 144000 Pa .
To Find :
Number of moles of nitrogen gas.
Solution :
We know, by ideal gas equation :
PV = nRT ( R ( universal gas constant ) = 8.31 J K⁻¹ mol⁻¹ .

Therefore, number of moles of nitrogen gas is 1.53 moles.
Answer:
x-10 should be the answer
Rocks carried by the river smash together and break into smaller pieces. This process is called attrition.
Explanation:
- Rocks carried by the river smash together and break into smaller pieces. This process is called attrition.
- attrition is a form of coastal or river erosion, Attrition is an erosional process where rocks and pebbles are carried in the flow of a river.
- Abrasion occurs when the breaking waves which contain sand and larger pieces erode the shoreline or headland of the shore.
- When the rocks continue to collide with each other,they erode more and more, getting smaller and smaller until they are only sediment, this is when rocks that the sea is carrying
- The amount of attrition depends upon the number of factors: particle properties such as its size, shape, surface, hardness, and cracks.
- It also have environmental properties such as time, velocity, pressure, shear, and temperature.