A 25.0 mL sample of water is at 30.0 degrees Celsius. a piece of metal is added to the sample of water and the tempature of the water decreases to 20.0 degrees Celsius. which of the following statements could be true about the piece of metal? awnsers:
1. the initial temlature of the metal was 10.0 degrees Celsius
2. the initial tempature of the metal was 20.0 degrees Celsius
3. the initial tempature of the metal was 30.0 degrees Celsius
4. the initial tempatuee of the metal was 40.0 degrees Celsius ​

answer: the value of enthalpy change will be -152.80 kj.

solution:

pressure = 1atm , temperature = = 298 k

given that pressure and temperature are same in both gases , the number of moles of both gases can be determined by the ideal gas equation.

according to reaction 3 moles no are reacting with 1 mol of ,then 0.49 mol of no will react with moles of ozone that is 0.16 moles of ozone. since, no is limiting reagent and is an excessive reagent.

enthalpy change for the reaction between the given volumes of the gases is :

plasma is the state of matter where the substance is ionized and has no definite shape or volume. the fact of being ionized makes the substance a good electrical conductor.

the answer is a for sure mark brainliest i had got this right on usatestprep