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Calculate the temperature change when 500 J of…

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PHYSICS

Calculate the temperature change when 500 J of heat is supplied to 100g of water.

(specific heat capacity of water = 4.2j/g°C)

A. 12.1°C

B. 2.1°C

C. 1.2°C

D. 0.1°C

QUICK ANSWER…

C

DETAILS…

The right formula for this problem will be that for the specific heat capacity of water which is given by:

2016 JAMB-UTME physics past question 4

Now for the right answer to the above question:

  1. Option A is incorrect.
  2. Option B is incorrect.
  3. C is correct.
  4. D is not the correct answer.
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KEY-POINTS…

You may please note these/this:

  • No need to convert the mass from gram to kilogram, this is because our specific heat capacity value is given in terms of gram and not kilogram.
  • Always ensure that your calculations are done in consistent units.

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/ culled from 2016 JAMB-UTME physics past question 4 /

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