In order to calculate the final volume of the gas, we may apply Charles Law, which states that for a fixed amount of gas subject to a fixed amount of pressure, the volume and temperature of a gas are directly proportional. This is:
V/T = constant
Using this equation,
5/298 = V/278
V = 4.66 L
The final volume of the gas is 4.66 liters
Neon is the element that is classified as a noble gas at STP.
Ans:
from the product / reactant solution
from the environment when no solution is involved
Endothermic reactions are those reactions that proceed with the absorption of heat energy. In this case, the enthalpy of the reactants i.e. the initial energy is lower than that of the products. Therefore, energy needs to be supplied in order to break the bonds in the reactants and allow the reaction to proceed. This energy can be absorbed either from the environment when no solution is involved or from the product reactant solution.
For example, electrolysis of water which produces H2 and O2 is an endothermic reaction. Here, energy is absorbed by water in the form of electricity (current) to split it into corresponding products.
Answer:NH4F ( ammonium fluoride)
Explanation:
NH4 is a cation with a positive 1 charge and F an anion having negative 1 oxidation number. Do the criss-cross rule for both cations and anions. So the charge of NH4 which is +1 will be the subscript of F and the charge of F which is -1 will be the subscript of NH4. Both have the same numerical value of 1 so we can cancel them out in the final equation of the chemical compound.
Answer:
The temperature is the same overtime.
Explanation:
Since the line on the graph is straight the temperature will be constant.