1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yulyashka [42]
3 years ago
8

4 what is the net amount of heat released when two moles of c2h6(g) are formed from its elements at 101.3 kpa and 298 k?

Chemistry
2 answers:
Gennadij [26K]3 years ago
8 0

Answer: Idk

Explanation:

kolbaska11 [484]3 years ago
6 0

Answer:

because reference table I shows that delta h for one mole of c2h6(g) is 84.0 kj so for 2 moles of c2h6(g) is 168.0kj

You might be interested in
Which equation agrees with the ideal gas law? mc005-1.jpg mc005-2.jpg mc005-3.jpg mc005-4.jpg
AlexFokin [52]
The ideal gas equation is pV = nRT


From that you can derive several equations, depending on which variables are fixed.


1) When n and T are fixed:

pV = nRT = constant


pV = constant => p1 V1 = p2 V2 => p1 / V2 = p2 / V1 ---> Boyle's Law


2) When n and V are constant:


p / T = nR/V = constant


p / T = constant => p1 / T1 = p2 / T2  ----> Gay - Lussac's Law


3) when n and p are constant


V / T = nR/p = constant   


V / T = constant => V1 / T1 = V2 / T2 ---> Charles' Law


4) When only n is constant


pV / T = nR = constant


pV / T = constant => p1 V1 / T1 = p2 V2 / T2 ----> Combined gas law.



There  you have the four equations that agree with the ideal gas law.  
7 0
3 years ago
Read 2 more answers
How can you force a solid compound to the bottom of a melting point capillary? a. tap the closed endb. tap the open endc. use a
snow_lady [41]

Answer: option A. tap the closed end

Explanation:

3 0
3 years ago
What are the requirements for combustion of a candle?
cestrela7 [59]
For a candle to burn, it requires a spark, which provides the activation energy for the oxidation reaction of the hydrocarbon making the candle.
It also requires oxygen to facilitate the oxidation of the hydrocarbon.
Therefore the two main requirements of combustion of a candle are oxygen and a spark (or an initial flame)
7 0
3 years ago
Which chemical symbols will complete the equation for this decomposition reaction?
kondaur [170]

Answer:

Decomposition of KI:

2KI → 2K + 2I

6 0
3 years ago
Read 2 more answers
The teacher said the volume of the liquid was 500 mL when measured a student found it was 499.7 mL what is the students percent
Natalka [10]

Answer:

<h2>0.06 % </h2>

Explanation:

The percentage error of a certain measurement can be found by using the formula

P(\%) =  \frac{error}{actual \:  \: number}  \times 100\% \\

From the question

error = 500 - 499.7 = 0.3

actual volume = 500 mL

We have

p(\%) =  \frac{0.3}{500}  \times 100 \\  =  \frac{3}{50}  \\

We have the final answer as

<h3>0.06 % </h3>

Hope this helps you

4 0
3 years ago
Other questions:
  • 5 grams of NaHCO3 was added to 50 cm3 of 1.5 mol dm-3 hydrochloric acid, causing the temperature to decrease by 6.8 K. What is t
    10·2 answers
  • How many grams of product are formed? (Remember the law of conservation of mass) A(20) B(17) C(31) D(34)
    14·1 answer
  • 4. If the earth were to heat up by 3 degrees, approximately how much would the sea level rise?
    13·1 answer
  • Explain how a strong acid ans a weak acid behave differently when each is dissolved in water
    7·2 answers
  • What type of reaction is this?<br> 2Na(s) + Cl2(g) —&gt; 2NaCl(s)
    10·1 answer
  • ______and_____are examples of pure substances.
    8·1 answer
  • Please help me thank you :)
    10·2 answers
  • Which race do you guys think I am (btw which picture should I post on insta?)
    7·2 answers
  • Draw the structures of organic compounds A and B. Indicate stereochemistry where applicable The starting material is ethyne, a c
    11·1 answer
  • A girl and her dog are running away from their house. The dog has a mass of 20kg. The girl has a mass of 60 kg.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!