In a reaction that makes water from hydrogen gas and oxygen gas where does to activation energy come from?

Answer 1

The real energy comes from the sun, which is solar (light) or from radioactive atoms in Earth's interior. Through this, we are able to produce different kinds of energy and this allows machines and even living things to move and to do things.

We use a lot of stored energy without really thinking where it comes from. We get food from the supermarket, petrol from the service station, and electricity through power lines. But where does the energy in these things come from in the first place? Green Plants store the energy of sunlight and chemical energy (Food), using a process called photosynthesis. Animals which eat these plants use most of the energy of their body activities and store the rest. So animals which eat plants and other animals are using stored energy that came originally from the sun. Most of our electricity comes from power stations which burn coal to produce steam. This steam is then used to turn turbo generators which produce the electricity. The petrol we use in our cars is produced by the distillation of crude oil. We use natural gas for heating. Coal, Oil, and natural gases are called fossil fuels because they were formed from plant and animal remains.

E=mc2. Energy cannot be created or destroyed, it can only change forms. Most of Earth's energy comes from the Sun.

From the Oil-Stocks;

From Sunlight.

Answer 2

Mostly from the Sun.

Plants and phototrophic bacteria make ATP using the energy of the Sun; animals are re-using this energy when they eat plants and (re-)-re-using when they eat other animals.

A more specific answer requires more input information, i.e. which biological (or chemical) process is of interest.

See also http://www.atpsynthase.info

Answer 3

Usually, activation energy is caused by thermal energy. This happens through intermolecular collisions or through thermal excitation of a vibration.

Answer 4

The activation enery comes from a source of ignition

Answer 5

energy can come from the sun, a light bulb or anything that turns on and off your poop

Answer 6

It comes from each gas.

Answer 7

The energy is from an external source.