Question

write any 10 changes or reactions around in nature to be identified and their values of delta h and delta as positive or negative to be written

Answer 1

Explanation:

When enthalpy is positive and delta H is greater than zero, this means that a system absorbed heat. This is called an endothermic reaction. ... For example, when water changes from liquid to gas, delta H is positive; the water gains heat. When water changes from liquid to solid, delta H is negative; the water loses heat.

Answer 2

Answer:

nahi maloom hai bhai jab maloom chalega tab answer de donga