When 100g of liquids L1 at 78°C was mixed with Xg of ...
When 100g of liquids L1 at 78°C was mixed with Xg of liquid L2 at 50°C, the final temperature was 66°C. Given that the specific heat capacity of L2is half that of L1, find x
50g
100g
150g
200g
Correct answer is C
Heat lost by L1 = heat gained by L2
cL1 = 2cL2
100 x 2cL2 x (78 - 66)
= xg x cL2 x (66 - 50)
xg = 150g
The process of detecting a pin mistakenly swallowed by a child is X-ray ...
The area under a force-distance graph represents ...
What charge is stored in a 0.1F capacitor when a 10V supply is connected across it? ...
If the frequency of an emitted x-ray is 1.6 x 1016Hz, the accelerating potential is? [e = 1....
Which of the following statements give the TRUE difference between evaporation and boiling? i. Ev...
A man standing 2 m from a charcoal fire is warmed mainly by? ...