How much work is done in the water electrolysis reaction above?  Assume room temperature conditions.Group of answer choices7.5 kJ- 7.5 kJ-2.5 kJ2.5 kJ

0.8 m3 of saturated liquid water at 200°C is expanded isothermally in a closed system until its quality is 61%. Determine the total work produced by this expansion in MJ. IMPORTANT INSTRUCTION: Put your answer in the text box up to two decimal places or as a whole number.Please note you don't need to write the unit for your answer. Just write the numerical value up to two decimal places.

Consider the explosion of a hydrogen balloon. 2H2(g)  + O2(g)   ⟶ 2H2O(g) How much work is done and is it on or by the system?Group of answer choices- 7.5 kJ+2.5 kJ-2.5 kJ7.5 kJ

.Question 6Consider a pump with a mass flow rate of water of 5 kg/s. The water enters at 99 °C and 9999 kPa and leaves at 150 °C and 15000 kPa. What is the specific work of the pump? Assume the process is adiabatic. 1 point219 kJ/kg-1095 kJ/kg1095 kJ/kg-219 kJ/kg

In the electrolysis of water shown below, a current of 2 amps is applied to 180 mL of H2O(l) for 6 hours and 42 minutes. How many grams of H2(g) are formed? (Faraday’s constant = 96,500 C/mol)2 H2O(l) + 2 e– → H2(g) + 2 OH–(aq)Question 27 Answer Choices   A.  0.25 g   B.  0.5 g   C.  5.0 g   D.  10.0 g

8.Question 8Water is compressed in a piston/cylinder system with specific heat transfer into the system of 150 kJ/kg. Determine the specific work that occurs if the water is initially a superheated vapor at 2000 kPa and 300°C and the final state is 2500 kPa and 350°C.1 point71 kJ/kg208 kJ/kg185 kJ/kg53 kJ/kg