A heating coil rated 1000 W is used to boil off completely 2 kg of boiling water. The time required to boil the water is?
[Special latent heat of Vaporization of water = 2.3 x 10\(^6\) Jkg-1]

a

1.15 x 104s

b

1.15 x 103s

c

4.6 x 104s

d

4.6 x 103s

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Explanation

Correct Option
d

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Discussions (15)

Ayomi424
4 years ago
Image

My school is correct this is the correct answer


check the image below

Anela
1 year ago

pt = ML
p= 1000
t= ?
M=2
L=2.3x10⁶=2300000

1000t= 2x2300000
1000t= 4600000
DBS BY 1000

t=4600000/1000
=4600= 4.6×10³ (ANS)

The question is wrongly composed:

the constant was not given but was used in the solution of the question

Magbrainy
11 years ago

Hw wil u know d latent heat since it wasnt given.

Williams1010
2 months ago

the formula i know is Q=ml

Williams1010
2 months ago

the formula i know is Q=ml,
am just seeing this .
like does jt have 2 formula

Finesse11
2 months ago

nothing even concern me with what y'all are saying abeg under which topic is this question

ogunleyeferanmi5
4 years ago

That's not the answer I got 4.6x10^-9✅
Not 4.6x10^3❎

teebabee
12 years ago

But the mass wasn't given

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