Question

A metal cylinder of mass 0.5 kg is heated electrically by a 12W heater in a room at 15C
then the cylinder temp rises uniformly to 25 min in 5 min and later becomes constant at 45C
i) Assuming the rate of heat loss is proportional to excess temp over the surroundings, calculate the rate of loss of heat of the cylinder at 20C
ii) Calculate specific heat capacity of metal taking into account the loss of heat to the surroundings

Answer 1

Explanation:

i hope its help you......

Answer 2

Explanation:

the rate of loss of heat of the cylinder to surrounding at

C is 2W

the rate of loss of heat of the cylinder to surrounding at

C is 12W

the rate of loss of heat of the cylinder to surrounding at

C is 5W

the rate of loss of heat of the cylinder to surrounding at

C is 30W.

Answer :

A::B

Solution :

Rate of heat loss

<br> At

C Rate of heat loss = Rate of heat supplied =12W <br>

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