A system performed 145 kJ of work on the surroundings and absorbed 105 kJ of heat from the surroundings. What is the change in energy of the system?

250 kJ

Explanation:

Step 1: Given data

Step 2: Calculate the change in the internal energy of the system

The internal energy of a thermodynamic system is the energy contained within it. We can calculate the change in the internal energy (ΔE°) using the following expression.

ΔE° = q + w

ΔE° = 105 kJ + 145 kJ = 250 kJ

yes, water is wet, just as it makes other things wet, it is wet itself, kinda like ice, when ice is in water, the ice makes water cold, and ice is cold, therefore with that example, water is wet

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