Under what conditions can a non spontaneous reaction be made spontaneous

How does a hydroelectric power plant converts energy into energy.

Astudent carefully transfers 30 g of water and 30 g of alcohol in a glass tube, forming two layers and filling the tube completely. after sealing the tube, the student mixes the solutions, and notices a bubble that forms in the tube. what is the mass of the contents in the glass tube after mixing?

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned