An electric heater rated 220V, 1000 W is immersed into a bucket full of water. Calculate the mass of water if the temperature changes from 30°c to 100°c and the current flows for 300seconds. [specific heat capacity of water = 4200 jkg-1 K-1]

oforjebeMichael

2 years ago

Please the P, is it 100 or 1000W?

ITZBALEX

1 year ago

why do we neglect the 220v

Anela

1 year ago

pt = mc∆temp.
p=1000
t=300
m= ?
∆ temp.= 100-30
= 70

1000×300 = m×4200×70
300000 = 294000 m
DBS BY 294000
m = 300000/294000
= 1.020

THE VOLT THERE IS NOT FOR US, IT'S JUST RATED

MosesCharles

4 years ago

What happened to the 220v??

yellowcy90

1 year ago

how did you get this 0 .12

semiloore2020

3 years ago

sir i didn't understand very well

Shadefemi

4 years ago

Please can it be solved out??? I wanna know the calculations please.... Anyone????