A serving of french fries
releases 320 kcal (1 kcal =
4.18 kJ) when digested by your
body. If this same amount of
energy were transferred to 1.5
kg of water at 30°C, what
would the final temperature

Explanation:

320 k Cal = 320 x 4.18 k J

= 1337.6 kJ

For rise in temperature the formula is

Q = m s Δ T

Q is heat added , m is mass of the water to which heat is added , s is specific heat of water , Δ T is rise in temperature .

1337.6 x 10³ = 1.5 x 4.18 x 10³ x  Δ T ( specific heat of water is 4.18 kJ per kg.)

ΔT is more than 70 degree . That means , heat is sufficient to boil it .

So final temperature will be 100 degree Celsius.

since you're a real machine, your ama is always less than your ima, because you can never totally eliminate friction.

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