Asked Nov 7, 2019

What is the quantity of heat energy is required to decompose 46.6 g of liquid water into hydrogen gas and oxygen gas?


H2(g) + ½ O2(g) -> H2O(l)                                  ΔHorxn = -285.8 kJ


Expert Answer

Step 1

Number of moles of water is d...


Want to see the full answer?

See Solution

Check out a sample Q&A here.

Want to see this answer and more?

Solutions are written by subject experts who are available 24/7. Questions are typically answered within 1 hour.*

See Solution
*Response times may vary by subject and question.
Tagged in



Related Chemistry Q&A

Find answers to questions asked by student like you
Show more Q&A

Q:| Sugar O Shop | Origami Owl Wholesale Glass... ...

A: The number of moles of any substance is equal to the Avogadro number which means that 1 mole of iodi...


Q: Enter your answer in the provided box. What is the pH of 275.0 mL of an aqueous solution containing ...

A: The pH of a solution is used to specify the solution is acidic or basic in nature. The pH is a logar...


Q: A mixture of krypton and hydrogen gas is compressed from a volume of 94.0L to a volume of 26.0L, whi...

A: The work done is calculated using formula,


Q: Zinc reacts with hydrochloric acid according to the reaction equation shown.   Zn(s)+2HCl(aq)⟶ZnCl2(...

A: Calculation for number of moles of Zn:


Q: Heat transfer in a reaction is 8740 J. Write the correct value (with correct sign) for q if heat is ...

A: Given The heat transfer in the reaction = 8740 J


Q: 17. Given the Ks for the reactions, calculate AG°S. Values given for 298 K. Kc 50.5 a. H2+ 12g)2 H) ...

A: (a)ΔGos can be calculated as follows,


Q: 13. Consider the following formula equations. Balance the equations and then write the net ionic equ...

A: The complete molecular equation for the reaction (a), multiply the species HCl(aq) with 2.


Q: If a solution containing 54.2154.21 g of lead(II) chlorate is allowed to react completely with a sol...

A: The balanced chemical reaction is given below.


Q: Please solve for all parts

A: The given cell reaction by shorthand notation is labelled as equation (1).The half-cell reaction at ...