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Hi, Can Anybody Help Me With My Science Question Thank You.

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pool123 | 18:44 Thu 01st Nov 2018 | Science
5 Answers
an electric kettle supplies 20,000J of energy to hear 0.5kg of water. what is the temperature change? the specific heat capacity of water is 4200J per kg per centigrade.
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The specific heat capacity is 4200J per kg per degree.

That's 2100J per 0.5kg per degree

Or 21,000J per 0.5kg per 10°

Does that help?
Oh no . . . not more english comprehension homework?

Does it really take 20,000j to hear the water or heat it?

Answers on a postcard, please?
The last bit of your post tells you the relationship between energy, mass, and temperature. Make t the subject and use it to plug the figures in and get the answer.
Flonskka, please don't denigrate a new member of AB. Give them a chance.
When I was at school we used the formula Q= MSѲ although I think it s seen more often now as Q=MS(∆T)
So just rearrange that formula to get ∆T = Q/MS and substitute in the given values for Q, M and S

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