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Question 19M.1A.SL.TZ1.29

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Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.SL.TZ1.29
Level SL Paper 1A Time zone TZ1
Command term Question number 29 Adapted from N/A
29.
[Maximum mark: 1]
19M.1A.SL.TZ1.29

A beaker containing 1 kg of water at room temperature is heated on a 400 W hot plate. The specific heat capacity of water is 4200 J kg–1 K–1.

The temperature of the water increases until it reaches a constant value. It is then removed from the hot plate.

What will be the initial rate of change of temperature?

A. 10 K s–1

B. 1 K s–1

C. 0.1 K s–1

D. 0.01 K s–1

[1]

Markscheme

C

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