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Internal Energy

In supplying ...

Question

In supplying $400$ calories of heat to a system, the work done will be

A

400

joules

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B

1672

joules

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C

1672

watts

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D

1672

ergs

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Solution

The correct option is B $1672$ ergs
It is known that $W = J Q$
Putting Values according to question:
$W = J Q = 4.18 \times 400 = 1672 j o u l e$

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