2 gram of ice at zero degree celsius is mixed with 1 gram of steam at hundred degree Celsius find the temperature of the mixture.and also why we are getting 3g of H20in this problem.please explain
Answer : 100°C Mixture Temperature
I am also going to assume that you have knowledge of
Latent Heat of fusion to change ice into water
Heat required to melt 1 g of ice of 0∘C to water at 0∘C = 1 × 80 cal.
Heat required to melt 2 g of ice of 0∘C to water at 0∘C = 2 × 80 cal = 160 cal
Now we have 2gm of water at 0∘C
Heat required to raise temperature of 1 g of water from 0∘C to 100∘C = 1 × 1 × 100 = 100 cal
Heat required to raise temperature of 2 g of water from 0∘C to 100∘C = 2 × 1 × 100 = 200 cal
Nowwe have 2gm of water at 100∘C
Total heat required by 2 gm of ice to attain maximum temperature of 100∘ = 160 + 200 = 360 cal
To supply this heat steam will convert into water and release latent heat of vapourisation.
1 gm steam when converted into water at 100°C release heat = 540 cal
So 2/3 gm steam when converted into water at 100°C will release heat = 360 cal
Hence final temperature of the mixture will be 100°C
Total water present = 2+2/3 gm = 2.67 gm at (100°C)
Total steam present = 1/3 gm =0 .33 gm at (100°C)
I do not know how you got 3 gm of water
If initially 3 gm of ice will be present
Than heat require will be 540 cal and full 1gm steam will be converted into water and finally you will get total water present = 3gm