<u>Given:</u>
Moles of gas, n = 1.50 moles
Volume of cylinder, V = 15.0 L
Initial temperature, T1 = 100 C = (100 + 273)K = 373 K
Final temperature, T2 = 150 C = (150+273)K = 423 K
<u>To determine:</u>
The pressure ratio
<u>Explanation:</u>
Based on ideal gas law:
PV = nRT
P= pressure; V = volume; n = moles; R = gas constant and T = temperature
under constant n and V we have:
P/T = constant
(or) P1/P2 = T1/T2 ---------------Gay Lussac's law
where P1 and P2 are the initial and final pressures respectively
substituting for T1 and T2 we get:
P1/P2 = 373/423 = 0.882
Thus, the ratio of P2/P1 = 1.13
Ans: The pressure ratio is 1.13
Answer : The amount of heat released would be, (3) 811.68 kcal
Explanation : Given,
Moles of carbon monoxide = 12.0 mole
Enthalpy change = -135.28 kcal
The given balanced chemical reaction is,
From the balanced chemical reaction we conclude that,
As, 2 moles of carbon monoxide react to release heat = 135.28 kcal
So, 12.0 moles of carbon monoxide react to release heat = 
Thus, the amount of heat released would be, 811.68 kcal
Answer:
During a chemical reaction, the chemical species that are undergoing the transformation (or that are present in the starting) are called reactants, and the new species formed after the transformation are called the products.
Explanation:
Hope this is helpful! :)
Answer:
In chemistry the substance is usually measured using molecular mass and molar mass. They are very important concepts in chemistry. Expression of molar mass is grams per mole.
...
Molar mass:
Difference between Molar mass and Molecular mass
Measurement given to compounds, atoms or molecules Determined only in molecules
Explanation:
hope the answer was helpful
Answer:
8.3334%
Explanation:
You have two masses. To find the percent of sodium chloride in water by mass, you divide the mass of NaCl by water. First, make both units the same. Easiest is to convert kg into g. 1.5kg = 1500g
125g NaCl/1500g H2O = 0.0833333333 ==> 8.3334%
