Answer:
The final temperature is 31.95° C.
Explanation:
Given that,
Initial temperature of a sample of chloroform,
Mass of chloroform, m = 150 g
It absorbs 1 kJ of heat, Q = 10³ J
The specific heat of chloroform, c = 00.96 J/gºC
We need to find the final temperature. The heat absorbed by an object in terms of specific heat is given by :
So, the final temperature is 31.95° C.
Yes. You should probably get it fixed
<u>Answer:</u> The mass of the reactants is always equal to the mass of the products.
<u>Explanation:</u>
Law of conservation of mass states that mass can neither be formed nor be destroyed but it can only be transformed from one form to another. This law is followed by all the balanced chemical reactions.
This law simply means that the total mass on the reactant side is always equal to the total mass on the product side.
For example: Formation of water from hydrogen and oxygen gas.
Total mass on the reactant side =
Total mass on the product side =
As, the total mass on the reactant side is equal to the total mass on the product side. Hence, this equation follows law of conservation of mass.
Answer:
n₂ = 31 mol
Explanation:
Given data:
Initial volume of gas = 6.2 L
Initial number of moles of gas = 19.2 mol
Final number of moles = ?
Final volume of gas = 10.0 L
Solution:
Formula:
V₁/n₁ = V₂/n₂
V₁ = Initial volume
n₁ = Initial number of moles
V₂ = Final volume
n₂ = Final number of mole
Now we will put the values.
6.2 L /19.2 mol = 10.0 L / n₂
n₂ = 10.0 L× 19.2 mol /6.2 L
n₂ = 192 L.mol /6.2 L
n₂ = 31 mol
The balanced chemical
reaction will be:
CH4 + 2O2 → CO2 + 2H2O
We are given the amount of carbon dioxide to produce from the reaction.
This will be our starting point.
560 L CH4 ( 1 mol CH4/ 22.4 L CH4 ) (2 mol O2/ 1 mol CH4 ) (
22.4 L O2 / 1 mol <span>O2</span><span>) = 1120 L O2</span>