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MA_775_DIABLO [31]
3 years ago
12

Calculate the amount of heat required to raise the temperature of a 24 g sample of water from 9°C to 23°C.

Chemistry
1 answer:
borishaifa [10]3 years ago
7 0

Answer:

1400KJ/mol⁻¹

Explanation:

Amount of heat required can be found by:

Q = m × c × ΔT

<em>Where m is the mass, c is the specific heat capacity (4.2KJ for water) and ΔT is the change in temperature.</em>

Q = 24 × 4.2 × (23 - 9)

= 24 × 4.2 × 14

=   1411.2KJ/mol⁻¹

= <u>1400KJ/mol⁻¹</u>  (to 2 significant figures)

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