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
Vaselesa [24]
1 year ago
15

When organic matter decomposes under oxygen-free (anaerobic) conditions, methane is one of the products. Thus, enormous deposits

of natural gas, which is almost entirely methane, serve as a major source of fuel for home and industry.
(a) Known deposits of natural gas can produce 5600 EJ of energy (1 EJ = 10¹⁸ J). Current total global energy usage is 4.0X10² EJ per year. Find the mass (in kg) of known deposits of natural gas (ΔH°rxn for the combustion of CH₄ = -802 kJ/mol).
Chemistry
1 answer:
Nataliya [291]1 year ago
7 0

The mass of methane is 1.117×10^17 g.

Given,

∆H°rxn =-802kj/mol

1Ej = 10^18 j =10^-3×10^18 kj

802kj of energy is released by 1 mol of CH4.

1kj of energy is released by 1/802 mol of CH4.

5600Ej of energy is released= 5600/802 mol of CH4

5600×10^18×10^-3 kj of energy is released

=5600 × 10^18 × 10^-3 /802 mol

=6.982 ×10^15 mol of CH4

We know,

the molecular mass of CH4 = 16 g

1 mol of CH4 = 16g

6.982×10^15 mol = 16 × 6.982 × 10^15 = 1.117×10^17 g

Hence, the mass of methane is 1.117×10^17 g.

Learn more about methane here :

brainly.com/question/694309

#SPJ4

You might be interested in
Question 6 pls I need help this is due in 2 minutes!!..
MAVERICK [17]

Answer:

c

Explanation:

7 0
2 years ago
Read 2 more answers
Select the correct formula for the polyatomic ion.
Helga [31]
The poly atomic ion formula for ammonium would be NH4+
7 0
3 years ago
Read 2 more answers
Which phenomena naturally warms earth lower atmosphere and surface?
Alenkinab [10]

The phenomenon that naturally warms the earth's lower atmosphere and surface is called the greenhouse effect.


Put me as Brainliest!!!

6 0
3 years ago
1- Science that deals with the identification and quantification of the components of material systems
Elis [28]

Answer:

Analytical science

Explanation:

7 0
3 years ago
Which profile best describes the reaction C(s) + 2H2(g) → CH4(g),<br> AH = -74.9 kJ?
katrin [286]

Answer:

Option B. A

Explanation:

From the question given above, the following data were obtained:

C(s) + 2H₂ (g) —> CH₄ (g). ΔH = –74.9 kJ

From the reaction above, we can see that the enthalpy change (ΔH) is negative (i.e –74.9 KJ) which implies that the heat content of the reactants is greater than the heat content of the products. Thus, the reaction is exothermic reaction.

For an exothermic reaction, the energy profile diagram is drawn in such a way that the heat content of reactants is higher than the heat content of products because the enthalpy change

(ΔH) is always negative.

Thus, diagram A (i.e option B) gives the correct answer to the question.

8 0
2 years ago
Read 2 more answers
Other questions:
  • The molar heat of fusion of gold is 12.550 kJ mol–1. At its melting point, how much mass of melted gold must solidify to release
    7·2 answers
  • Which is more soluble in basic solution than in pure water? co2 nacl agf agcn?
    12·1 answer
  • What happens if you remove electrons from a neutral object?
    10·1 answer
  • The energy exchange with the environment during a chemical reaction is called the heat of reaction.
    14·1 answer
  • Heat can be transferred from one material to another by direct touch, by differences in density in a fluid, and by ______ conduc
    6·1 answer
  • Ammonia (NH3) boils at -33∘C; at this temperature it has a density of 0.81 g/cm3. The enthalpy of formation of NH3(g) is -46.2 k
    11·1 answer
  • When we experience higher than normal low tides and lower than normal high tides we are experiencing?
    5·2 answers
  • What can be said about the reactants and the products in this reaction?
    14·1 answer
  • Wildfires occur because of... (Choose the 3 correct answers)
    9·2 answers
  • What is a hypothesis?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!