Coal, which is primarily carbon, can be converted to natural gas, primarily ch4, by the exothermic reaction:
1 answer:
Unfortunately, your question is incomplete So, according to the attached picture of the complete question we will explain the answer:
according to the reaction equation:
C(s) + 2H2(g) ↔ CH4(g) ΔH° = -74.6KJ
So the true answer will be D i and ii
- as by adding more C and it is a reactant so the reaction will go rightward to the product to decrease the C to achieve the equilibrium again, the movement of the reaction towards the products will make the CH4 increase
- and by decreasing the Heat and the heat here is as a product as the reaction is exothermic so by decreasing the heat the reaction will go toward the products to increase the heat and achieve the equilibrium again, and that also makes the CH4 increase as it is a product.
So the true answer is D i and ii as the attached photo
according to the reaction equation:
C(s) + 2H2(g) ↔ CH4(g) ΔH° = -74.6KJ
So the true answer will be D i and ii
- as by adding more C and it is a reactant so the reaction will go rightward to the product to decrease the C to achieve the equilibrium again, the movement of the reaction towards the products will make the CH4 increase
- and by decreasing the Heat and the heat here is as a product as the reaction is exothermic so by decreasing the heat the reaction will go toward the products to increase the heat and achieve the equilibrium again, and that also makes the CH4 increase as it is a product.
So the true answer is D i and ii as the attached photo
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Answer:
No.
Explanation:
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There is no standard for the size of a rice grain, so let's make an arbitrary assumption.
An average rice grain behaves as if it were a rectangular solid with dimensions 7 mm × 2 mm × 2 mm.
The volume of one rice grain is
V = lwh = 7 mm × 2 mm × 2 mm = 28 mm³
Convert to cubic metres :
2. Volume of the room
V = lwh = 30.0 m × 8.5 m × 3.5 m = 890 m³
3. Volume of a mole of rice
4. Conclusion
The room is not big enough to hold a mole of rice.
If you work it out, you will find that it takes about
20 000 000 000 000 (twenty trillion) rooms to hold a mole of rice.