Step-by-step explanation:
To find ΔrH for the combustion of naphthalene, we can use the equation: ΔrH = qp / n
where qp is the heat absorbed by the bomb calorimeter and n is the number of moles of naphthalene.
First, we need to find qp. We can use the formula: qp = mcΔT
where m is the mass of naphthalene, c is the specific heat capacity of the calorimeter, and ΔT is the change in temperature.
Given that m = 1.312 g, c = 4.184 J/g°C, and ΔT = 30.188 - 24.710 = 5.478 °C
qp = (1.312 g)(4.184 J/g°C)(5.478 °C) = 27.948 J
Next, we need to convert the mass of naphthalene to moles. We can use the molar mass of naphthalene, which is 128.17 g/mol
n = m / M = 1.312 g / 128.17 g/mol = 0.0103 mol
Finally, we can use the equation ΔrH = qp / n to find ΔrH:
ΔrH = qp / n = 27.948 J / 0.0103 mol = 2713.8 J/mol
Therefore, the ΔrH for the combustion of naphthalene at 298 K is 2713.8 J/mol.
In addition to the 4Ps of marketing, it is also important to consider the sustainability, ethics and social responsibility in the twenty-first century marketplace when launching a campaign. It is important to consider the impact the product, service or campaign has on the environment and the society, how it is produced and how it is marketed to the public. Additionally, understanding the target audience, their demographics and what they value is important to create an effective marketing campaign.