Answer:
P = 5.868 atm
Explanation:
- Pt = (PN2O)(XN2O) + (PO2)(XO2)
assume T = 25°C = 298.15 K
∴ PN2O = 1 atm
∴ XN2O = nN2O/nt
∴ n = PV/RT....ideal gas
⇒ nN2O = ((1atm)(1L))/((0.082atm.L/K.mol)(298.15K)) = 0.041 mol N2O
∴ PO2 = 6 atm
∴ XO2 = nO2/nt
∴ nO2 = ((6atm)(6L))/((0.082atm.L/K.mol)(298.15K)) = 1.472 mol O2
⇒ nt = nN2O + nO2 = 0.041 + 1.472 = 1.513 mol
⇒ XN2O = 0.041/1.513 = 0.03
⇒ XO2 = 1.472/1.513 = 0.973
⇒ Pt = ((1atm)(0.03)) + ((6atm)(0.973))
⇒ Pt = 5.868 atm
Answer:
what is a system at equilibrium?
Answer:
Molarity.
Explanation:
- The molarity (M) of a solution is defined as the no. of moles of solute that dissolved in 1.0 liter of the solution.
M = (mass / molar mass) of the solute (1000 / volume of the solution).
<em>So, the best measurement of concentration for describing the concentration of a solid solute dissolved in one liter of a liquid solution is Molarity.</em>
Answer:
The methane gas burns
Explanation:
The burning of methane gas is a combustion reaction. Combustion is an exothermic process. For all exothermic processes, ∆H is negative.
Combustion reaction involves the evolution of heat. The energy of reactants is greater than the energy of products hence the excess energy is given off in the form of heat leading to a negative value of the enthalpy of reaction, hence the answer.
The answer you are looking for is (3) number of atoms.
Avogadro's law dictates this to be the case. This law states that when you have equal volumes of gases (1 L) at the same temperature and pressures (in this case STP), each vessel will have the same number of molecules.
The law states the same number of molecules, however, neon and krypton are noble gases which are found as single atoms rather than an entire molecule. So the law still applies to these gases.