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How much thermal energy is absorbed when 145 g of water at 23ºC is heated until it boils and turns into vapour?

User Andy Miller
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1 Answer

6 votes
6 votes

Answer:

the thermal energy absorbed is 46,893 J

Step-by-step explanation:

Given;

mass of the water, m = 145 g = 0.145 kg

initial temperature of the water, t₁ = 23 ⁰C

final temperature of the water, t₂ = 100 ⁰C

specific heat capacity of water, c = 4,200 J/kg.⁰C

The thermal energy absorbed is calculated as;

H = mcΔt

H = 0.145 x 4,200 x (100 - 23)

H = 46,893J

Therefore, the thermal energy absorbed is 46,893J

User Gauthier
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