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<u>Answer:</u> The final temperature of the mixture is 45.6°C
<u>Explanation:</u>
To calculate the mass of water, we use the equation:
Density of water = 1 g/mL
- <u>When volume is 240.0 mL</u>
Putting values in above equation, we get:
- <u>When volume is 100.0 mL</u>
Putting values in above equation, we get:
When two water solutions at different temperature are mixed, the amount of heat released by water present at higher temperature will be equal to the amount of heat absorbed by water present at lower temperature..
The equation used to calculate heat released or absorbed follows:
......(1)
where,
q = heat absorbed or released
= mass of water solution 1 = 240 g
= mass of water solution 2 = 100 g
= final temperature = ?°C
= initial temperature of water solution 1 = 25°C
= initial temperature of water solution 2 = 95°C
c = specific heat of water= 4.186 J/g°C
Putting values in equation 1, we get:
Hence, the final temperature of the mixture is 45.6°C