# Can any one help me with these question?

##### 1 Answer

#### Answer:

Here's what I get.

#### Explanation:

**Step 1. Calculate the TBP**

The formula for **TBP** is

where

**TBP**

**D86 BP**

I used Excel to calculate the **TBP** values.

**Step 2. Plot the distillation curves**

Here are the Excel Plots.

**Step 3. Calculate the VABP**

The formula for the **Volume Average Boiling Point** (**VABP**) is

where the

For the **D86** distillation

For the **TBP**

**Step 4. Calculate the slopes of the distillation curves**

The formula for the slope of a distillation curve is

For the **D86** distillation

For the **TBP**