How much heat is required to convert 20 g of ice at 0oC t...
How much heat is required to convert 20 g of ice at 0oC to water at the same temperature? (Specific latent heat of ice = 336 J g-1)
1.35 x 103J
5.38 x 103J
6.72 x 103J
7.06 x 103J
8.06 x 103J
Correct answer is C
The formula of specific latent heat of fusion is given by: Q = mL
: 20 X 336
= 6720 or 6.72 X 10\(^3\)
In an experiment in which molten naphthalene is allowed to cool, the cooling curve i n the figu...
The p-n junction diodes can act as rectifiers because they ...
Which of the following waves can propagate through a vacuum? ...
The absolute temperature of a perfect gas is proportional to the average ...
A sealed flask contains 600cm3 of air at 27°C and is heated to 35°C at constant pressure. Th...
The activity of a radioactive substance depends on ...
When a pure semiconductor is heated, its resistance? ...
Which of the following factors does not affect the e.m.f of a primary cell? Its ...
The vacuum between the double walls of a thermos flask reduces heat loss through ...