I need help with question 5. Ignore my writing A 25.6 B 26.1 C 26.5 D 26.2

Answer : The correct option is, (C) 26.5 L

Explanation :

The combustion of ethylene is:

First we have to calculate the number of moles of water vapor.

From the balanced chemical reaction, we conclude that:

As, 1 mole of react to give 2 moles of

So, 0.535 mole of react to give moles of

Now we have to calculate the volume of water vapor.

Using ideal gas equation:

where,

P = pressure of gas = 100 kPa

V = volume of gas = ?

T = temperature of gas =

R = gas constant = 8.314 L.kPa/K.mol

n = number of moles of gas = 1.07 mol

Now put all the given values in the above formula, we get:

Therefore, the volume of water vapor is, 26.5 L.

nuclear fission produces elements that are heavier than helium.

the elements that are used in nuclear fission and their products are much heavier than helium.