A sample of water with a mass of 648.00 kg at 298 k is heated with 87 kj of energy. the specific heat of water is 1 j-1 kg k-1.

Question

1 year ago

12

what is the final temperature of the water?

1 answer:

9966 [12] · Answer 1 · 2023-08-22T03:29:04+03:00

The final temperature of the water is 298. 14 k

<h3>What is quantity of heat?</h3>

The formula for quantity of heat is given as:

Q = mc Δ T = m c ( final temperature - initial temperature)

Where:

Substitute the values

87 = 648 × 1 ( T₂ - 298)

87 = 648 ( T₂ - 298)

Divide both sides by 648

87/ 648 = ( T₂ - 298)

0. 134 = T₂ - 298

Make 'T₂' subject of formula

T₂ = 298 + 0. 134

T ₂ = 298. 14 k

Thus, the final temperature of the water is 298. 14 k

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