Solve

Guides

0

You visited us 0 times! Enjoying our articles? Unlock Full Access!

Question

100 watt immersion heater is placed in a pot containing 1 litre of water at 20°C. How long will it take to heat water to boiling temperature if 2096 of the available energy is lost to surroundinga? 1) 60 minutes 2) 70 minutes 3) 44 minutes 4) 32 minutes

Open in App

Solution

Verified by Toppr

Was this answer helpful?

0

Similar Questions

Q1

A

100 W

immersion heater is placed in a pot containing

1 litre

of water at

20^{\circ} C

. How long will it take to heat water to boiling temperature. if

20 %

of the available energy is lost to surroundings ?

View Solution

Q2

It takes 15 minutes to rise a certain amount of water from

0^{o} C

to boiling point using a heater. Then it takes 1 hour and 20 minutes to convert all the water into vapour. Then the latent heat of vapourization of water is:

View Solution

Q3

An electric immersion heater is switched on for 8 minutes. The heat supplied by it raises the temperature of 500 g of water from

10^{o} C t o 60^{o} C

. Calculate the power of the heater in watts.

View Solution

Q4

A certain quantity of water is heated from $$20^\circ C$$ to $$ 100^\circ C $$. Its temperature is recorded after each minute. The observations are:

Time in minutes	Temperature ($$^\circ C$$)
0	20
1	30
2	40
3	50
4	60
5	70
6	80
7	90
8	100
9	100
10	100
11	100

What conclusion do you draw from the above table about the boiling point of water? Explain.

View Solution

Q5

A water filter takes $40 m i n u t e s$ to filter $20 l i t r e s$ water. Another filter of the same specifications takes $30 m i n u t e s$ to filter the same amount of water. If both the filters are used at the same time. Then how long it will take them to filter the $70 l i t r e s$ of water?

View Solution