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
A wave that travels through stretched strings is known as ...
A rectangular piece of iron measuring 4 cm by 3 cm at 20\(^o\)C is heated until its temperature...
In an a.c circuit that contains only a capacitor, the voltage lags behind the current by ...
Which of the following figures gives the correct resultant R of two vectors P and Q? ...