Answer:
The enthalpy for given reaction is 232 kilo Joules.
Explanation:
...[1]
..[2]
..[3]
..[4]
2 × [2] + [3] - [1] ( Using Hess's law)
![\Delta H^o_{4}=2\times \Delta H^o_{2}+\Delta H^o_{3} - \Delta H^o_{1}](https://tex.z-dn.net/?f=%5CDelta%20H%5Eo_%7B4%7D%3D2%5Ctimes%20%5CDelta%20H%5Eo_%7B2%7D%2B%5CDelta%20H%5Eo_%7B3%7D%20-%20%5CDelta%20H%5Eo_%7B1%7D)
![\Delta H^o_{4}=2\times (-340 kJ) + (-211 kJ) - (-1,123 kJ)](https://tex.z-dn.net/?f=%5CDelta%20H%5Eo_%7B4%7D%3D2%5Ctimes%20%28-340%20kJ%29%20%2B%20%28-211%20kJ%29%20-%20%28-1%2C123%20kJ%29)
![\Delta H^o_{4}=232 kJ](https://tex.z-dn.net/?f=%5CDelta%20H%5Eo_%7B4%7D%3D232%20kJ)
The enthalpy for given reaction is 232 kilo Joules.
d. exothermic; leaving
- Exothermic reaction is a reaction that produces heat in the reaction whereas the endothermic reaction is a reaction in which heat is required to be given in the reaction to produce product.
- Fire is an exothermic reaction.
- A fire is produced due to oxidation of the fuel in the form of liquid or gas.
- A fire is an example of combustion.
- In fire both heat and light are left from fire due to the oxidation of fuel.
Hence, option d. exothermic; leaving is the correct option.
Learn more about fire:
brainly.com/question/12761984
Answer:
18.76atm
Explanation:
Using the formula V1P1/T1 = V2P2/T2, from combined gas law. Volume is constant since we have not been given. Therefore the formula comes to be; P1/T1 = P2/T1
To get P2 = T2(P1/T1)
Where P2 is final pressure
P2 = 239K ( 23atm/293K)
=18.76atm
Answer: A
Explanation:
1cm=.01 so it would be 167-34
The degree to which a specified material conducts electricity, calculated as the ratio of the card density in the material to the electric field that causes the flow of current. It is the reciprocal of the resistivity.