A flexible balloon containing 1.5 mol of... ideal gas at constant pressure of 1.5 at...

100 °C. Calculate the change in intern...‡ (ΔE) of the gas.

You don't have units on all of the numbers.

To calculate the change in internal energy (ΔE) of a gas, you can use the equation:

ΔE = nCvΔT

Where:
ΔE is the change in internal energy of the gas
n is the number of moles of gas
Cv is the molar heat capacity at constant volume
ΔT is the change in temperature of the gas

First, let's calculate the value of Cv for the gas. The molar heat capacity at constant volume (Cv) for an ideal diatomic gas can be given as:

Cv = (5/2)R

Where R is the molar gas constant (8.314 J/(mol·K)).

So, Cv = (5/2) * 8.314 = 20.785 J/(mol·K) (rounded to three decimal places).

Next, we calculate the change in temperature (ΔT) using the given initial and final temperatures.

ΔT = Tfinal - Tinitial

Given that the initial temperature (Tinitial) is 100 °C = 373 K, and the final temperature (Tfinal) is not provided in the question, we need that information to proceed with the calculation.

Please provide the final temperature of the gas.