Which of the following elements is a metal in the periodic table
1 answer:
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3.75 litres is the volume of the balloon indoors at a temperature of 25°C.
Explanation:
Data given:
initial temperature of the gas in balloon = -35°C or 238.15 K
initial volume = 3 litres
final temperature = 25 °C or 298.15 K
final volume =?
pressure remains constant
From the data given when pressure is constant Charles' law is applied.
=
Rearranging the equation to know the final volume of the gas in balloon
V2 =
V2 =
V2 = 3.75 Litres
when the temperature of a gas is increased and pressure remains constant the volume of the gas increases.
Answer:
6.8 × 10⁻⁴ mol/L.atm
Explanation:
Step 1: Given data
Solubility of nitrogen gas at 25°C (S): 4.7 × 10⁻⁴ mol/L
Partial pressure of nitrogen gas (P): 522 mmHg
Step 2: Convert the partial pressure of nitrogen to atm
We will use the relationship 1 atm = 760 mmHg.
Step 3: Calculate the value of the Henry's Law constant (k)
We will use Henry's law.
Explanation:
The reaction equation will be as follows.
Using bond energies, expression for calculating the value of is as follows.
On reactant side, from number of bonds are as follows.
C-C bonds = 1
C-H bonds = 6
From ; Cl-Cl bonds = 1
On product side, from number of bonds are as follows.
C-C bonds = 1
C-H bonds = 5
C-Cl bonds = 1
From HCl; H-Cl bonds = 1
Hence, using the bond energies we will calculate the enthalpy of reaction as follows.
= = -102 kJ/mol
Thus, we can conclude that change in enthalpy for the given reaction is -102 kJ/mol.