f you want to raise the temperature of 200 grams of water at 20° Celsius to 30° Celsius, how much water and at what temperature would you need?
Twice as much water at 40° Celsius must be added.
Half as much water at 40° Celsius must be added.
Twice as much water at 30° Celsius must be added.
Twice as much water at 60° Celsius must be added

Question

f you want to raise the temperature of 200 grams of water at 20° Celsius to 30° Celsius, how much water and at what temperature would you need?
Twice as much water at 40° Celsius must be added.
		Half as much water at 40° Celsius must be added.
		Twice as much water at 30° Celsius must be added.
		Twice as much water at 60° Celsius must be added

anonymous · Answer

muchrather u said that i m good in chemistry lols..

anonymous · Answer

i no need to prove someone ....ok .this problem is too simple just use ur mind if u didn't get ...den i will help u.ok

anonymous · Answer

I'm really lost. Any help would be appreciated.

anonymous · Answer

at another 200g water at 40° Celsius to this 20° Celsius of 200g water to balance out the temperature...
correct me if i'm wrong

anonymous · Answer

That's was my guess, too.

anonymous · Answer

basically this is balancing the temperature....haha :D

anonymous · Answer

I just needed someone else's opinion. Thanks!

anonymous · Answer

well i m thinking that it might be done like this as here pressure is constant and volume too 
so 
PV=nRT1
   =11.1Rx293
now at temperature 30 degree centigrade
PV=n2RT2
11.1 Rx 293= n2 R x 303
solve it u ll get n2

anonymous · Answer

yea by getting just by uing the formula PV=nRT put value u ll get them :)

anonymous · Answer

pv=nrt????? have u listen about elevation of boiling point ...