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
Inessa05 [86]
4 years ago
7

What is the enthalpy of combustion (per mole) of C3 H8 (g)?

Chemistry
2 answers:
Anarel [89]4 years ago
8 0
The enthalpy of combustion of propane is -2202.0 kJ/mol.
The enthalpy of combustion is released when one mole of compound is burned in the presence of excess oxygen. The bonds between carbon and hydrogen in the compound are broken and bonds between carbon and oxygen are formed as well as bonds between hydrogen and oxygen are formed.

stealth61 [152]4 years ago
3 0

Answer:

The answer is A

Explanation:

Just took the test

You might be interested in
A gas has a temperature of 14 °C, and a volume of 4.5 liters. If the temperature is raised to 29
Ierofanga [76]

The new volume of the gas wii be 4.7 liters.

7 0
3 years ago
How many amino acids can compose a protein molecule?
Vladimir79 [104]
The answer is A: Between 50 and 5,000 amino acids
3 0
2 years ago
PLZ HELP ASAP! I need this done tonight please
arlik [135]

Explanation:

this is a chemistry question ???

anyway, it is clearly A, as seatbelts try to counteract the inertia a moving body (our bodies riding in a car) has, when the environment (the car) of this body is suddenly coming to a stop.

this inertia would otherwise try to move the body still forward resulting in a headfirst crash into and often through the windshield. which causes much more damage to the body than the bruises caused by the pressure of the seatbelts against the body counteracting the body's inertia.

but also clearly, all 3 laws play a role.

the force with which the moving body has to deal when smashing into the windshield and potentially then other objects outside the car is described by the second law.

and for any action (crash) there are corresponding reactions (like the conversion of the crash energy into some absorbing reaction : damaged soft and hard tissue in the human body, crumbled car bodies,...).

7 0
3 years ago
Understanding atoms elements and compounds
zavuch27 [327]
What about understanding atoms and compounds?
8 0
3 years ago
A 825 g iron block is heated to 352 degrees C and is placed in an insulated container (of negligible heat capacity) containing 4
Stella [2.4K]

Answer : The final equilibrium temperature of the water and iron is, 537.12 K

Explanation :

In this problem we assumed that heat given by the hot body is equal to the heat taken by the cold body.

q_1=-q_2

m_1\times c_1\times (T_f-T_1)=-m_2\times c_2\times (T_f-T_2)

where,

c_1 = specific heat of iron =  560 J/(kg.K)

c_1 = specific heat of water = 4186 J/(kg.K)

m_1 = mass of iron = 825 g

m_2 = mass of water = 40 g

T_f = final temperature of water and iron = ?

T_1 = initial temperature of iron = 352^oC=273+352=625K

T_2 = initial temperature of water = 20^oC=273+20=293K

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

(825\times 10^{-3}kg)\times 560J/(kg.K)\times (T_f-625K)=-(40\times 10^{-3}kg)\times 4186J/(kg.K)\times (T_f-293K)

T_f=537.12K

Therefore, the final equilibrium temperature of the water and iron is, 537.12 K

8 0
3 years ago
Other questions:
  • Write an electron configuration for an atom of aluminum-27 in an excited state
    14·2 answers
  • Socratic an example of an atom that has no charge is one that has
    10·1 answer
  • Which of the following is/are true concerning a chemical reaction at equilibrium? 1. The system will be a mixture of reactant an
    9·1 answer
  • Tides are mostly caused by
    11·1 answer
  • Carbon-14 forms nitrogen-14 by
    5·2 answers
  • Who is known as ''The Living Lion''in nepal?
    10·2 answers
  • 2 Which two substances cause iron to rust?
    15·1 answer
  • Help ASAP need help and thank you:)
    6·1 answer
  • PLEASE HELP!!!! WILL GIVE BRAINLIEST!!!!
    12·1 answer
  • How are organelles specialized to perform various tasks in a cell?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!